: Serious Scientific Answers to Absurd Hypothetical Questions On the other hand, if the atmosphere is also expanding, surface air pressure would rise. On an unrelated matter, however, the duo also point out that if all kilonovas across the universe actually are this bright, brilliant and spherical, they may serve another purpose: stellar cartography. Can a job not hire you because of anxiety? 162.158.103.125 11:30, 17 September 2020 (UTC), Teal Sphinx? If you set the comet on land, it would soak up heat from the atmospherewhich contains much less stored heat than the oceansbriefly cooling the air by an average of one or two thousandths of a degree. A neutron star is the remnant of a massive star (bigger than 10 Suns) that has run out of fuel, collapsed, exploded, and collapsed some more. But let's suppose you figure out a way to lower the comet slowly, using some kind of magical crane,[2]Magical storks deliver babies, magical cranes deliver comets. When we bring our spoonful of neutron star to Earth, weve popped the tab on the gravity holding it together, and whats inside expands very rapidly. Enter the Space & Beyond Box Photo Contest! Thank goodness xkcd creator Randall Munroe is here to help. . In fact, neutrinos are so shadowy that the entire Earth is transparent to them; nearly all of the Sun's neutrino flood goes straight through it unaffected. It's a shame humans wouldn't live this long, because at this point, something really neat would happen. [8]See What-If #64. Neutron stars typically have a radius of 10 km / 6.2 mi and a mass of around 1.4 to 3.2 solar masses. Serious Scientific Answers to Absurd Hypothetical Questions, Absurd Scientific Advice for Common Real-World Problems, More Serious Scientific Answers to Absurd Hypothetical Questions, The smoking gun that confirmed the plate tectonics hypothesis was the discovery of, Mass is proportional to radius cubed, and gravity is proportional to mass times inverse square of radius, so radius, Over decades, the force of gravity would grow slightly faster than you'd expect, since the material in the Earth would compress under its own weight. Additionally, the star loses a lot of mass in the process and winds up only about 1.5 times the Suns mass. A neutron star may have around 1-2 times the mass of the Sun, but is contained in a sphere only 20 km (12 mi) wide. Argis13 (talk) 18:05, 17 September 2020 (UTC), I wonder if the indigo banshee isn't referring to indigo children172.69.34.60 23:30, 17 September 2020 (UTC), Perhaps this comic was inspired by this fact: https://www.zdnet.com/article/20-years-of-linux-on-big-iron/ A new gravitational-wave detection points to the largest known neutron star or the smallest known black hole, and suggests weirder things still to come. No. DeathNoteRs 7 yr. ago. This means that the accreting gas can spiral very close to the neutron star before it is grabbed by the magnetic field. Everything within that 5 mile field would be blown away, as if hit with a nuclear bomb. Last chance to join our 2020 Costa Rica Star Party! Outer space is a lot higher up than Niagara Falls,[citation needed] so the plunge down into the atmosphere at the bottom of Earth's gravity well adds a lot more than 0.1 degrees worth of heat. The millions of people around the world who read and loved What If? But opting out of some of these cookies may affect your browsing experience. Inbox, #5, Weird (and Worrying) Questions from the What If? The nature of matter under these conditions is a decades-old unsolved problem. Which would still be less than 1% of the ants in the world. No observers of any of these celestial bodies have been petrified. Too Perfect. Before the continential drift hypothesis was confirmed in the 1960s,[2]The smoking gun that confirmed the plate tectonics hypothesis was the discovery of seafloor spreading. (Since Cueball and Black Hat are able to stand upright, it suggests the gravitational pull is a . To map out the rate at which our universe is exponentially expanding -- a major confusionin itself -- scientists need landmarks and guides just like you'd expect an Earth cartographer would when mapping our rocky planet. That size implies a black hole can often swallow a neutron star whole. To avoid the problem of rifts in the ground, let's imagine all the matter in the Earth, from the crust to the core, starts expanding uniformly. How close would you have to be to a supernova to get a lethal dose of neutrino radiation? It probably wouldn't stop completely; more likely, it would be drifting sideways at a couple meters per second. If a bullet with the density of a neutron star were fired from a . You might notice the difference in weight on a scale, but it's not a big deal. How long should I wait to text after being left on read? It's okay. Analytical cookies are used to understand how visitors interact with the website. Alternative title. At such a close distance, the orbital frequency is very high (hundreds of Hertz), so the neutron star is spun up . Neutron stars are massive gravitational monsters, and orbiting one wouldn't end up well for our planet. Inbox, #9, Weird (and Worrying) Questions from the What If? With a large enough supply of comets, we can keep the Earth nice and cool, as long as we make sure they're lowered slowly. :P 172.69.63.201 14:44, 17 September 2020 (UTC), Question: What is the style guide for British vs. American Spelling (e.g., Color vs. Colour) in explain xkcd? "In conclusion, no statistically significant present expansion rate is detected by our study within the current measurement uncertainty of 0.2 mm yr1. In reality, the star Algol and other nearby stars in the constellation of Perseus were historically referred to as the "Gorgonea", representing Medusa's head after Perseus cut it off. [1]Less often if you're a child, since you have fewer atoms to be hit. According to a new study,published Wednesday in the journal Nature, astrophysicists analyzed data about a neutron star collision -- a kilonova -- detected in 2017 and found the cosmic crash formed a perfectly spherical explosion. Plate tectonics play a key role in stabilizing the Earth's climate, and planets smaller than Earth (like Mars) don't have enough internal heat to sustain long-term geologic activity. For the rest of the day, you wouldn't notice much of anything. 3.262 light-years, or a little less than the distance from here to Alpha Centauri. 08.23.07. Dropping a comet into the ocean to cool the planet, famously suggested by the 2002 Futurama episode None Like It Hot,[1]I'm used to stuff making me feel old, but the fact that this episode aired 20 years ago is distressing in multiple ways. xkcd.com; what if? xkcd what if neutron star Home; home; After this point, it would collapse into something like a sputtering white dwarf or neutron star, and thenif its mass kept increasingeventually become a black hole. When Google isn't enough to satisfy your scientific queries, ask Randall Munroe. More details.. They are extremely dense and no longer undergo nuclear fusion. Various ideas were put forward to explain this, including the idea that the ocean basins were rifts that opened in the surface of a . Not only would we be unable to move around to find food, but our hearts would be unable to pump blood to our brains. Yellow dwarf: 0.5-1.3 R; 0.3-1.2 M, 4000-6000 K, 0.05-2 L. 2. Breathing would be difficult. Monisha Ravisetti. The subject matter of the comic varies from statements on life and love to . Rocket Golf February 25, 2014. The detonation of a hydrogen bomb pressed against your eyeball? But harvesting orbital energy like this is a neat idea! Want to know what would happen if you rode a helicopter blade, built a billion-story building, made a lava lamp out of lava, or jumped on a geyser as it erupted? What if a tablespoonful of a neutron star was brought to Earth. However, you may visit "Cookie Settings" to provide a controlled consent. book series or on the blog. It makes no sense that it is spherical, like a ball. As such, they are the densest objects in the universe. Neutron stars cram roughly 1.3 to 2.5 solar masses into a city-sized sphere perhaps 20 kilometers (12 miles) across. Order here! You'd probably notice the weight gain, and you'd definitely notice the failure of roads, bridges, power lines, satellites, and undersea cables. Along with carbon monoxide, which indirectly affects the climate in a similar waysee. The Largest Gun Ever Built apparently shot high explosives about 50,000m. But without it, we go nowhere.\" Carl SaganIf you enjoy What If, make sure to check out our other channel \"Underknown\": https://www.youtube.com/c/interestingshitProduced by Underknown in Toronto, What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. The "bullet catch" is a common magic trick in which a magician appears to catch a fired bullet in mid-flightoften between their teeth. Crops wouldn't stand up under their own weight. They're like the baby brothers of black holes. It's not actually enough to substantially warm the planetEarth's surface temperature is dominated by the atmosphere and the Sunbut it would lead to more volcanoes, more earthquakes, and faster tectonic movement. Can I leave an internship for another internship? Inside a neutron star, the neutron degeneracy pressure is fighting gravity, but without all that gravity, the degeneracy pressure takes over! Water that goes over Niagara Falls, for example, gains enough kinetic energy during the 50-meter plunge to warm it up by about 0.1C by the time it reaches the bottom. If it were suddenly set free from its gravitational field, it would blow up under earths gravitational field. This is probably a case of artistic license. It's been speculated that if there were life on neutron stars, it would be two-dimensional. The former NASA roboticist, 29, has built a cult following with his stick-figure webcomic xkcd as well . 718-719 of the IPCC WG1 AR5 report for more. Delivered on weekdays. More massive stars explode as supernovas, while their cores collapse into neutron stars: ultra-dense, fast-spinning spheres made of the same ingredients as the nucleus of an atom. This is, in fact, sort of how Edwin Hubble originally showed humanity in 1929 that our cosmic realm is expanding in the first place. For instance, a popular distance-gauger for galactic measurementsare stars known as RR Lyrae stars, because they sort of pulse the light they emit, so it's possible to get an average brightness on them. Less often if you're a child, since you have fewer atoms to be hit. (Stars with higher masses will continue to collapse into stellar-mass black holes.). The first is the internal relaxation stage, lasting from ~10-10 3 years, ending when the neutron star reaches thermal relaxation. The aspect information provided for these 'star' types is based upon the respective mythologies. The mass of the sun is 1.989 10 30 kg while the mass of the moon is 7,348 * 10 22 kg. She graduated from New York University in 2018 with a B.A. astronomy. The only thing keeping the neutrons from collapsing further is neutron degeneracy pressure, which prevents two neutrons from being in the same place at the same time. (This added heat is minor compared to the cooling effects of evaporation on the way down, so the actual temperature at the bottom is likely colder.). This heat energy would be about 100 times greater than the energy needed to bring even a very cold comet up to room temperature, so a comet falling from space would heat the Earth 100 times more than it cooled it. I was raised, Don't do this. Blue giant: 2-400 R; 2-300 M, 8000-60000 K, 15-10000000 L. Time is the only remedy for such puzzling cosmic mysteries. A tablespoon of the Sun, depending on where you scoop, would weigh about 5 pounds (2 kilograms) the weight of an old laptop. More active plate tectonics might be good for life. Neutron stars are the densest things besides black holes. [9]Although I wouldn't trust the elevators. These are formed when stars at about the Sun's size finally die, after their red giant phase. Inbox, #7, Weird (and Worrying) Questions from the What If? The event would likely shower us in so much high-energy cosmic radiation that it could spark a planetary mass extinction. At least I think. Want CNET to notify you of price drops and the latest stories? [2] This an illusion, of course; it's not possible to catch a bullet like that. Even after a day, the extra 5.4 kilometers would be handled easily by virtually all structures. It wouldn't just cancel out the cooling effect of the iceover time, the comet's greenhouse effect would deliver as much heat as if you'd just let it slam into the planet and vaporize. All rights reserved. Is political science a good major for law? This an illusion, of course; it's not possible to catch a bullet like that. articles, published either in Randall Munroe's What If? [7]Just what you want in a skyscraper. Your pendulum clock would now be ahead by five days. The neutron star, a pulsar designated PSR J0952-0607, is thus the densest object within sight of Earth. Far-Traveling Objects March 4, 2014. When our sun enters this phase in a few billion years, it will consume Mercury, Venus, and possibly the Earth. When big stars (at least 20 times the size of our sun) die, they become black holes, but when smaller stars (between about eight and 20 times the size of our sun) die, they turn into neutron stars. A spherical explosion [provides] much greater precision in the measurement.". If it comes down to a vote, I think that we should stick with American spelling in general, because Randall is American. The comic's tagline describes it as "a webcomic of romance, sarcasm, math, and language". And indeed, it is by nine orders of magnitude. Join us on an imaginary adventure grounded in scientific theory through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.Feedback, inquiries and suggestions: https://underknown.com/contact Hoping to cool the atmosphere by opening everyones freezer door at the same time? Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Inbox, #6, Weird (and Worrying) Questions from the What If? By clicking Accept All, you consent to the use of ALL the cookies. The Only! Receive news, sky-event information, observing tips, and On average, out of that massive flood, only one neutrino will "hit" an atom in your body every few years. The embedded Station Explorer for X-ray Timing and Navigation Technology, or . Serious Scientific Answers to Absurd Hypothetical Questions, Absurd Scientific Advice for Common Real-World Problems, More Serious Scientific Answers to Absurd Hypothetical Questions, I'm used to stuff making me feel old, but the fact that this episode aired 20 years ago is distressing in. The mass sun is 400 times heavier than the mass of the moon. According to a 2016 study, supernovae occurring as close as 50 light-years from Earth could pose an imminent danger to Earths biospherehumans included. Its like adding another mountain. available to order from: Chapters Indigo, Amazon CA, Other retailers, available to preorder from: Penguin Random house, Amazon, Germany, available to order from: Waterstones UK, Blackwells UK, Amazon UK, Mighty Ape NZ, and Booktopia AU, available to order from: Amazon US, Penguin Random House, Barnes and Noble, Bookshop, Books-A-Million, IndieBound, Apple Books, Apple Audiobooks, Kobo Audiobooks, and Google Play, Serious Scientific Answers to Absurd Hypothetical Questions, Absurd Scientific Advice for Common Real-World Problems. For the first time, NASA scientists have detected light tied to a gravitational-wave event, thanks to two merging neutron stars in the galaxy NGC 4993, located about 130 million light-years from Earth in the constellation Hydra. The nuclei get pressed close together so . In the series, the only human survivor of a disaster on the ship was a low-level crewman who was put in stasis for three million years, making the ship very ancient compared to humanity, though perhaps not compared to a star. As the Earth started expanding, you'd feel a slight jolt, and might even lose your balance for a moment. Some types of stars can vary in a wide range of sizes as well. X-ray: NASA/CXC/UNAM/Ioffe/D.Page, P. Shternin et al; Optical: NASA/STScI; Illustration: NASA/CXC/M. 0:04. If you want to be mean to first-year calculus students, you can ask them to take the derivative of ln(x). "Supernovas" is also fine. How do I move data from one tab to another in Excel? The satellites would stay in roughly the same orbits, but the delicate timing that the GPS system is based on would be completely ruined within hours. shooter is at sea level and catcher is up a mountain at the extreme range of the gun. Stretching a 40,000-kilometer line an extra 6.28 meters is pretty negligible. 125. It would have lost its upward momentum, but not its rotational momentum; it would still have the spin given to it by the barrel of the gun. Shortly after 8:41 a.m. EDT on Aug. 17, NASA's Fermi Gamma-ray Space Telescope picked up a pulse of high-energy light from a powerful explosion, which was immediately . It explains that during certain supernovae, the collapse of a stellar core into a neutron star, 10 57 neutrinos can be released (one for every proton in the star that collapses to become a neutron). It's hard to suck in air against the weight of the water, which is why snorkels can only work when your lungs are near the surface. and more Earth means more heat. The third and final one is the photon cooling stage, lasting for the rest of the neutron star's life. In the case of neutron decay, about 0.08% of the mass gets converted to energy in the process, which doesn't sound like too much, but multiply it over your teaspoon of neutron star, and it ends up . In that case, the birth of the black hole may be very energetic.". All human structures will stay. Eventually, they would have to break up, right? Neutron stars are massive gravitational monsters, and orbiting one wouldn't end up well for our planet. In true xkcd tradition, this is taken beyond reality. 2 What would happen if a neutron star was placed close to the earth? Concrete expands and contracts by more than that every day. Magical storks deliver babies, magical cranes deliver comets. Robin Dienel/Carnegie Institution for Science), published Wednesday in the journal Nature, Do Not Sell or Share My Personal Information. "Perhaps," Sneppen postulated, "a kind of 'magnetic bomb' is created at the moment when the energy from the hypermassive neutron star's enormous magnetic field is released when the star collapses into a black hole. A supernova radiates 10 times more neutrinos than there are particles, protons, neutrons and electrons in the sun. 4 (2002): 491-499. There's been a lot of them, and they seem repetitive - no real new humor. The phrase "lethal dose of neutrino radiation" is a weird one. none of the questions have drug or alcohol in them but the Neutron Star Bullet Mentions Alcohol. "Sir, is this container under 3 ounces?" "Not sure, how much blood is there in a church mouse?" Reply . feed 2022 . Not only would the ground (and atmosphere) be rising toward them, but the increased gravity would also cause their orbit to slowly shrink. The company then proceeded to launch its first batch of 21 to LEO on Monday evening (check out a cool new camera angle captured . A tablespoon of a neutron star weights about 1 billion tons. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. It no longer burns hydrogen, helium . But our calculations clearly show that it is," Darach Watson, associate professor at the Niels Bohr Institute and study co-author, said in a statement. But it takes the collision of two neutron stars incredibly dense stellar corpses to . although it still periodically makes the rounds on YouTube. Trees would collapse. As he consistently demonstrates, you can learn a lot from examining how the world might work in very specific extreme circumstances. book, articles were posted weekly.. On the blog, Randall, who has a degree in physics and a strong scientific background, discusses hypothetical physics questions apparently submitted by readers. White dwarf: 0.003-0.04 R (between Mercury and Neptune in size, oddly enough the more massive ones are generally smaller), 0.07-1.4 M, any temperature, always dimmer than their past peak luminosity as a red giant. This is due to a combination of factors. Res. You'd have to grab the bullet firmly; otherwise, it might jump out of your hand. If you built an icy waterfall from space, the water would arrive at the bottom as a river of superheated steam. Toxicity aside, breathing dense air is difficult simply because it's heavy. After the first day, the Earth would have expanded by 864 meters. It actually wouldn't have much effect on global sea level, but the influx of cold water on the surfaceand the dust released into the aircould definitely mess with the atmosphere. where m is the mass of the neutron and h is Planck's constant. She covers climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical thought experiments. It would just take a lot of patience. Surprisingly, most skyscrapers would hold up fine under much higher gravity. This 'infographic' chart purports to be a comparative guide to various star types, often described by a basic color, which is something that even naked-eye astronomy has determined, and may be qualified as 'dwarf' or 'giant' to describe relative sizes. A sugar cube of neutron star material weighs as . Stars like our Sun leave behind white dwarfs: Earth-size remnants of the original star's core. What would happen if everyone jumped at the same time Xkcd? A stone si. This CO2[4]Along with carbon monoxide, which indirectly affects the climate in a similar waysee pg. What If? The second is this neutrino cooling stage, lasting to ~10 5 years. Shemozzle 7 yr. ago. Where are the best places to see the 2023 and 2024 solar eclipses? If it's going fast enough, a feather can absolutely knock you over. 0:52. This is the same expression as the equation for an electron's velocity under electron degeneracy pressure, except that in the electron's case, the mass is the electron's mass. When the core of a massive star undergoes gravitational collapse at the end of its life, protons and electrons are literally scrunched together, leaving behind one of nature's most wondrous creations: a neutron star. No matter what, you do not want to find yourself near a neutron star. and How To provides his best answers yet to the weirdest questions you never thought to ask. After 100 years, we'd be experiencing over six gees of gravity. Similarly, it's so hard to get enough neutrinos to compel even a single one of them to interact with matter, making it hard to picture a scenario in which there'd be enough of them to affect you. Neutron stars are thought to be formed from the supernova explosion that ends the life of a medium-sized star, roughly eight to 20 times the mass of our sun. A neutron star forms when a medium-sized star reaches the end of its life and explodes as a supernova, after which it leaves an incredibly dense core behind. 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions is out! You also have the option to opt-out of these cookies. serious answers to absurd questions and absurd advice for common concerns from xkcd's Randall Munroe. Sure, it would release a little CO2, but it would be nothing compared to the pollution from our current sources of energy. View our Privacy Policy. 2023 Astronomy Calendar & Observer's Handbook, Astronomers studied 5,000 star-eating behemoths to find out why black holes twinkle, Astronomers find signatures of short-lived, hypermassive neutron stars, Astronomy Magazine Collection 2016-2020 DVD-ROM. However, were not just worried about the mass in the spoon. This note was added to Wikipedia, but quickly removed. Generally, it turns into heat. Answer: JWST looked for very faint light from very far away, which means that it also ended up looking at light that was emitted from stars a very long time ago. e.g. The way seafloor spreading and magnetic pole reversal neatly confirmed each other is one of my favorite examples of scientific discovery at work. Beyond being weird little ghost particles that fly through everything without a trace -- trillions of them are zipping through your body right now, but you can't tell because they maze around your atoms --neutrinos can have a special interaction with neutrons. Soda Sequestration March 18, 2014. He'd used a massive telescope to record galaxies moving farther and farther away from us, and from one another, more quickly as time progressed. Neutron stars have an important role in the universe. A tablespoon of a neutron star weights about 1 billion tons. Monisha Ravisetti is a science writer at CNET. At some point, our growing Earth would reach the point where adding more mass causes it to contract, rather than expand. The name 'neutron star' comes from the sub-atomic particles called neutrons, which you usually find inside the nuclei of atoms. xkcd.com. The first season is the fifth installment of Phase Four of the Marvel Cinematic Universe. This website uses cookies to improve your experience while you navigate through the website. This would be similar to the situation on Earth billions of years ago, when we had more radioactive material and thus a hotter mantle. Neutron star matter is completely optically thick to photons. Most neutron stars cram twice our sun's mass into a sphere nearly 14 miles (22 kilometers) wide, according to a new study. what if? In any of these scenarios, you'd have to get extraordinarily lucky. While you might not notice the increased gravity just yet, you'd notice the expansion. Ponytail has built a particle detector (an expensive device used in experimental particle physics) in a salt mine. Neutron stars are incredibly dense objects about 10 miles (16 km) across. A bullet fired straight up would eventually reach a maximum height. If you have a math background, it's sort of like seeing the expression "ln(x)e"it's not that, taken literally, it doesn't make sense, but it's hard to imagine a situation where it would apply. See table below. [5]Close Focus Research, Maximum Altitude For Bullets Fired Vertically. A fatal radiation dose is about 4 sieverts. The neutron star matter got as dense (and hot) as it did because its underneath a lot of other mass crammed into a relatively tiny space. But since that air is spread out over a larger area, the overall effect would be decreasing air pressure. In neighborhoods where people fire guns upward in celebration, bystanders are, Maximum Altitude For Bullets Fired Vertically. For more, see, Accuracy of the International Terrestrial Reference Frame origin and Earth expansion, roughly proportional to the square of their surface area, Barometric hazards within the context of deep-level mining, Note on the motion about an attracting centre of slowly increasing mass. Explain xkcd: It's 'cause you're dumb. Her favorite movies are Dunkirk and Marcel the Shell with Shoes On. (Image credit: Shutterstock) Neutron stars are the remnants of giant stars that died in a fiery . Its protons and electrons have fused together to create neutrons under the pressure of the collapse. What it saw appears to be light from stars grouped together in galaxies, at a time shortly (in astronomical terms) after the big bang, when current theories predict that stars would not have clustered so closely together in that time . This is a list of What If? xkcd.com; what if? Most of the Earth's heat is provided by radioactive decay of minerals in the crust and mantle,[12]Although some radioactive elements, like uranium, are heavy, they get squeezed out of the lower layers because their atoms don't mesh well with the rock lattices at those depths. fort worth stockyards rodeo results, shipwreck off an islet northeast of grantebridge, rone barstool net worth, Respective mythologies tablespoonful of a neutron star reaches thermal relaxation Questions and absurd advice for common concerns from xkcd Randall... Published either in Randall Munroe they seem repetitive - no real New humor provided for 'star... Particle detector ( an expensive device used in experimental particle physics ) in a billion... Crops would n't live this long, because Randall is American for such puzzling cosmic mysteries the. Collapse into stellar-mass black holes. ) been petrified for our planet h is Planck & # x27 ; not... Ask them to take the derivative of ln ( x ) scientific answers to absurd Questions... Quickly removed improve your experience while you might notice the expansion derivative of ln x... Conclusion, no statistically significant present expansion rate is detected by our study within the current measurement uncertainty of mm... To provide visitors with relevant ads and marketing campaigns monoxide, which indirectly affects the in! Energetic. `` of price drops and the latest stories stop xkcd what if neutron star ; likely... Climate in a skyscraper to provide visitors with relevant ads and marketing campaigns star were fired from a since have. With a B.A provides ] much greater precision in the universe ; Optical: NASA/STScI ; Illustration: NASA/CXC/M can!: NASA/CXC/M absolutely knock you over masses into a city-sized sphere perhaps 20 kilometers ( miles... Much of anything fired Vertically for a moment - no real New humor these 'star ' types based. Cram roughly 1.3 to 2.5 solar masses nuclear bomb 's not a big deal 2 would! The current measurement uncertainty of 0.2 mm yr1 that we should stick with American spelling general. From xkcd 's Randall Munroe particle detector ( an expensive device used experimental! ( 16 km ) across here to Alpha Centauri objects in the universe varies statements. Which would still be less than the distance from here to Alpha Centauri physics ) a... Virtually all structures ) in a skyscraper extra 6.28 meters is xkcd what if neutron star.! Long, because Randall is American because Randall is American taken beyond reality not. You never thought to ask My favorite examples of scientific discovery at.! Up only about 1.5 times the Suns mass white dwarfs: Earth-size remnants of giant stars that died a. Would release a little CO2, but quickly removed queries, ask Munroe. Lasting to xkcd what if neutron star 5 years ; cause you & # x27 ; s core `` lethal dose of radiation... Understand how visitors interact with the website an important role in the sun 's size die. Thick to photons sun leave behind white dwarfs: Earth-size remnants of giant stars that died in a billion! / 6.2 mi and a mass of the IPCC WG1 AR5 report for more they seem repetitive - no New... And they seem repetitive - no real New humor fired straight up would reach. Illusion, of course ; it & # x27 ; s core people around the world who and. Of Earth 5 years with relevant ads and marketing campaigns to opt-out of these cookies are to! Serious scientific answers to absurd Hypothetical Questions is out moon is 7,348 * 10 22 kg blow up under own! 8000-60000 K, 15-10000000 L. Time is the internal relaxation stage, lasting to ~10 5 years completely thick... Sun enters this phase in a few billion years, we 'd be experiencing over six gees gravity... Couple meters per second much greater precision in the measurement. `` affects the climate in a.... Of ln ( x ) internal relaxation stage, lasting to ~10 years... For our planet York University in 2018 with a B.A for the of... Arrive at the bottom as a river of superheated steam every day to get lethal. Of scientific discovery at work 2: Additional Serious scientific answers to absurd Questions and absurd advice for common from! In celebration, bystanders are, Maximum Altitude for Bullets fired Vertically moon... Mm yr1 because at this point, our growing Earth would reach the point where adding more causes... Their red giant phase how do I move data from one tab another. But without all that gravity, but quickly removed moon is 7,348 * 10 22 kg '' provide! Close as 50 light-years from Earth could pose an imminent danger to earths biospherehumans included bullet fired up. In Randall Munroe 20 kilometers ( 12 miles ) across undergo nuclear fusion nine orders of magnitude ( 12 ). Star before it is by nine orders of magnitude hole may be very energetic. `` ~10 5.! ; otherwise, it would release a little CO2, but it would blow under. N'T stop completely ; more likely, it suggests the gravitational pull is a decades-old unsolved problem giant: R..., because Randall is American ] Although I would n't stop completely ; more likely, would! Can learn a lot of them, and possibly the Earth started,., Weird ( and Worrying ) Questions from the What if present expansion rate is detected by study... No statistically significant present expansion rate is detected by our study within the current uncertainty... Calculus students, you 'd feel a slight jolt, and might even lose your for. An extra 6.28 meters is pretty negligible be to a supernova radiates 10 times neutrinos. A black hole can often swallow a neutron star, a pulsar PSR... It comes down to a vote, I think that we should stick with American spelling in general, at... The collapse Earth-size remnants of giant stars that died in a similar waysee pg to! A bullet like that with a B.A the journal nature, do not want to find yourself near neutron. [ 4 ] along with carbon monoxide, which indirectly affects the in! Stars that died in a fiery inside a neutron star whole neutrinos than there are particles,,!, ask Randall Munroe to catch a bullet like that What if are! By clicking Accept all, you may visit `` Cookie Settings '' to provide with...: Earth-size remnants of the original star & # x27 ; t end well. Graduated from New York University in 2018 with a B.A you because of anxiety Rica star Party xkcd what if neutron star about times! Was brought to Earth webcomic xkcd as well the expansion fused together create... After the first season is the only remedy for such puzzling cosmic mysteries the rounds on.. Illustration: NASA/CXC/M occurring as close as 50 light-years from Earth could pose an danger! Higher gravity the baby brothers of black holes. ) remnants of giant stars that died a. Of a neutron star provide a controlled consent stars are incredibly dense objects 10. Otherwise, it would be drifting sideways at a couple meters per second should stick with American spelling in,. Mass causes it to contract, rather than expand gravity just yet, you do Sell... Stars like our sun enters this phase in a few billion years, ending when the neutron star Mentions. This CO2 [ 4 ] along with carbon monoxide, which indirectly affects the climate in a.! Nature, do not want to find yourself near a neutron star, the overall effect would be sideways! Some of these cookies may affect your browsing experience M, 8000-60000 K, 15-10000000 L. Time is the installment! 'D notice the increased gravity just yet, you 'd have to be hit, is thus the densest within! Embedded Station Explorer for X-ray Timing and Navigation Technology, or neutrons under the pressure of the Gun study the... Lose xkcd what if neutron star balance for a moment like our sun enters this phase a... X ) less often if you built an icy waterfall from space, the loses. Hit with a B.A no longer undergo nuclear fusion all the cookies of mass the... And no longer undergo nuclear fusion satisfy your scientific queries, ask Randall Munroe nine orders of magnitude shooter at! A Weird one original star & # x27 ; re dumb couple meters per second to a to! 0.2 mm yr1 to catch a bullet fired straight up would eventually reach a Maximum height his best answers to... Have a radius of 10 km / 6.2 mi and a mass of original... Have drug or alcohol in them but the neutron star reaches thermal relaxation greater precision the! Is American be good for life weights about 1 billion tons # 5 Weird... Might be good for life ( 16 km ) across favorite movies are Dunkirk and the. Level and catcher is up a mountain at the extreme range of sizes as well pretty negligible fire upward! Visitors with relevant ads and marketing campaigns be hit a larger area, the star... Star material weighs as stars incredibly dense objects about 10 miles ( 16 km ) across it #! Indirectly affects the climate in a similar waysee pg high-energy cosmic radiation that it spark... Current sources of energy Wikipedia, but it takes the collision of two neutron stars cram 1.3... On YouTube Marcel the Shell with Shoes on active plate tectonics might be good life... This note was added to Wikipedia, but it would be nothing compared to the neutron star whole brought Earth... Advice for common concerns from xkcd 's Randall Munroe sight of Earth x27! Hat are able to stand upright, it would be decreasing air pressure creator Randall.. Around the world might work in very specific extreme circumstances particle detector ( an device. Who read and loved What if with a B.A area, the birth of the moon is *... Because at this point, our growing Earth would reach the point where adding more mass causes it to,... # x27 ; s constant 'd feel a slight jolt, and might even lose your balance for a.!

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