Ask ethan: could the universe be infinite?
Date created: Sat, Jun 19, 2021 10:29 AM
Date created: Sun, Jun 20, 2021 2:42 AM
In fact, unless inflation went on for a truly infinite amount of time, the Universe must be finite in extent. As vast as our observable Universe is and as much as we can see, it's only a tiny ...
Date created: Sun, Jun 20, 2021 3:52 AM
Ask Ethan: Could the Universe be infinite? Perhaps the limits of what we can observe aren’t just artificial; perhaps there are no limits to what’s out there at all. Ethan Siegel
Date created: Mon, Jun 21, 2021 5:13 AM
Ask Ethan: Can the universe be infinite? Logarithmic image of the observable universe in the artist's view 13.8 billion years ago, the universe began with a hot big bang. Since then, it has expanded and cooled, right up to today. From our point of view, we can observe the Universe within a radius of 46 billion years due to the limitation of the ...
Date created: Mon, Jun 21, 2021 9:33 AM
If dark energy were truly a constant type of energy that didn't change as the Universe expanded, the Universe would simply expand forever.
Date created: Mon, Jun 21, 2021 4:52 PM
"Two things are infinite, the universe and human stupidity, and I am not yet completely sure about the universe." -Frederick S. Perls, quoting Einstein Ask Ethan: Could the Universe be infinite ...
Date created: Tue, Jun 22, 2021 5:38 PM
Everything outside the universe is a piece of infinite 3d graph paper - it literally goes on forever it is truly infinite. A simple 2d explaination would be. r = (t)+v^(e-g)
Date created: Thu, Jun 24, 2021 7:57 AM
Ask Ethan: Could The Universe Be Infinite? “[W]hat are your thoughts on the universe being infinite or even existence being so? I’ve been told by many cosmologists that an infinite universe or existence hasn’t been materially proven. How can such be empirically proven anyway?” The Universe we can see and access is certainly a big place.
Date created: Thu, Jun 24, 2021 3:33 PM
Forbes - Ethan Siegel • 1745d. 13.8 billion years ago, the Universe began with the hot Big Bang. It's been expanding and cooling ever since, up through and including the present day. From our point-of-view, we can observe it for some... Read more on forbes.com.
Date created: Fri, Jun 25, 2021 6:54 PM
Nov 19, 2016 - Ask Ethan: Could the Universe be infinite?. Perhaps the limits of what we can observe aren’t just artificial; perhaps there are no limits to what’s out there at all.. Pinterest. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with ...
Date created: Sat, Jun 26, 2021 11:45 AM
Nov 6, 2016 - The Universe as we know it began with the Big Bang some 13.8 billion years ago. But that doesn't mean it isn't infinite.
Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also!
Used to be described as the largest known star based on a radius of 1,800–2,100 R ☉. Older estimates gave the radius of VY CMa as above 3,000 R ☉ ,  or as little as 600 R ☉ .  Matsuura et al. 2013 estimates 2,069 R ☉ based on a luminosity of 237,000 L ☉ and an assumed effective temperature of 2,800 K.  
If you can estimate the rate at which stars have formed, you will be able to estimate how many stars there are in the Universe today. Gaia mapping the stars of the Milky Way In 1995, an image from the Hubble Space Telescope (HST) suggested that star formation had reached a peak at roughly seven thousand million years ago.
Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also! Hipparcos mapped millions of stars in our galaxy, but how many more are there?
The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also! Hipparcos mapped millions of stars in our galaxy, but how many more are there?
Below is a list of the largest stars currently known, ordered by radius.The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi).. The angular diameters of stars can be measured directly using stellar interferometry.Other methods can use lunar occultations or from eclipsing binaries, which can be used to test indirect methods of finding stellar radii.
My way i make a neutron star in universe sandbox 2 for who want to make a neutron star but do not know how.Making a Neutron Star (Step-by-Step)First StepHow to make a neutron star-first ad a red supergiant.Supernova!Get it to supernova if it had a supergiant (red) mass it will have a nova remain.
59 Related questions
We've handpicked 59 related questions for you, similar to «Ask ethan: could the universe be infinite?» so you can surely find the answer!
When did the first stars form in the universe? Answer: Results from NASA's Wilkinson Microwave Anisotropy Probe (WMAP) released in February 2003 show that the first stars formed when the universe was only about 200 million years old. Observations by WMAP also revealed that the universe is currently about 13. 7 billion years old.
A proposed novel in the mid-1990s, Alien Exodus, would have involved humans from Earth traveling back in time to populate the Star Wars galaxy. But this project was never completed, and Lucasfilm productions has given no further indication that the Star Wars galaxy exists in the same universe as Earth.
Multiplying that by the Milky Way's estimated 100 billion stars results in a large number indeed: 1,000,000,000,000,000,000,000,000 stars, or a "1" with 24 zeros after it (1 septillion in the...
So how big is the universe? No one knows if the universe is infinitely large, or even if ours is the only universe that exists. And other parts of the universe, very far away, might be quite different from the universe closer to home. Future NASA missions will continue to search for clues to the ultimate size and scale of our cosmic home.
Kornreich used a very rough estimate of 10 trillion galaxies in the universe. Multiplying that by the Milky Way's estimated 100 billion stars results in a large number indeed:...
Averaging out the types of stars within our galaxy, this would produce an answer of about 100 billion stars in the galaxy. This is subject to change, however, depending on how many stars are...
For the Universe, the galaxies are our small representative volumes, and there are something like 10 11 to 10 12 stars in our Galaxy, and there are perhaps something like 10 11 or 10 12 galaxies. With this simple calculation you get something like 10 22 to 10 24 stars in the Universe.
Miss Universe theme song.Video: Miss Universe Organization.Music: You are my Star by Little Sisters.
How NASA could help stop climate change with solar satellites In the sky near the moon, meteors from the Orionid shower, created by remnants of Halley's Comet left in 1986, streak above the San...
The largest known 'object' in the Universe is the Hercules-Corona Borealis Great Wall. This is a 'galactic filament', a vast cluster of galaxies bound together by gravity, and it's estimated to be about 10 billion light-years across!
Or maybe Star Trek and Star Wars exist in the same universe. Maybe, through guile and charisma, R2-D2 managed to survive for eons, escaping a galaxy far, far away and eventually securing work on a Starfleet vessel thanks to the organization's open-door, no-questions-asked policy of bringing new allies into the fold.
Measurements made by NASA's WMAP spacecraft have shown that the universe is 13.7 billion years old, plus or minus about 130,000 years. They were able to do this by making detailed observations of the fluctuations in the cosmic microwave background and using that information in Einstein's Theory of General Relativity to 'run the clock backwards to time equal zero'.
Phantasy Star Universe is now able to be played on PC!! There is a private server that has finally been opened for Phantasy Star Universe that I have been playing on.. It is in open Beta so there are still some things that need to be worked out keep that in mind.. But I urge everyone that is a fan of this game, go check it out.
Our universe began in a tremendous explosion known as the Big Bang about 13.7 billion years ago (left side of strip). Observations by NASA's Cosmic Background Explorer and Wilkinson Anisotropy Microwave Probe revealed microwave light from this very early epoch, about 400,000 years after the Big Bang, providing strong evidence that our universe did blast into existence.
Max Landis tells Jenny how HE would fix the Star Wars universe in this week's Millennial Falcon! You can watch previous episodes of Millennial Falcon episode...
Prime, Kelvin, or something else - Which universe is Star Trek Discovery actually in? By Leon Hurley 16 February 2018 Is Star Trek Discovery in the Prime or Kelvin timeline?
Welcome to the most comprehensive map of the Star Wars galaxy, featuring planets from the movies, TV shows, and Expanded Universe. You can use this page to browse and explore the galaxy and find links to Wookieepedia articles about the locations. If you’re looking for a specific planet and can’t find it here, try using the search page.
Featured above in true color are the 25 brightest stars in the night sky, currently as seen by humans, coupled with their IAU-recognized names. Some star names have interesting meanings, including Sirius ("the scorcher" in Latin), Vega ("falling" in Arabic), and Antares ("rival to Mars" in Greek).
Technically, even the Kelvin timeline Sarek is ‘a character from the TOS universe’, first appearing in the 1967 episode Journey to Babel. The practical upshot of all this is that, yes, all the talk...
The sun has been lighting our planet for 4.6 billion years and dominates all life on Earth -- but it's a speck in comparison to the other stars in the univer...
The most common answer seems to be that there are 100 billion stars in the Milky Way on the low-end and 400 billion on the high end. But I’ve seen even higher numbers thrown around. Credit: NASA, ESA, W. Clarkson (Indiana University and UCLA), and K. Sahu (STScl)
ε Aurigae was incorrectly claimed in 1970 as the largest star with a size between 2,000 R ☉ and 3,000 R ☉, even though it later turned out not to be an infrared light star but rather a dusk torus surrounding the system.
How the Universe Works: Extreme Stars Video questions Name: Date: Block: 1. There are more stars in the universe then there are specks of _ on Earth. 2. How many Earths could fit inside the sun? 3. If our Sun was the size of Betelgeuse it would reach out as far as the planet. 4. All stars begin as 5. of new stars are born from one nebula. 6.
The fictional universe of the Star Wars franchise features multiple planets and moons.While only the feature films and selected other works are considered canon to the franchise since the 2012 acquisition of Lucasfilm by The Walt Disney Company, some canon planets were first named or explored in works from the non-canon Star Wars expanded universe, now rebranded Star Wars Legends.
The end result is unknown; a simple estimation would have all the matter and space-time in the universe collapse into a dimensionless singularity back into how the universe started with the Big Bang, but at these scales unknown quantum effects need to be considered (see Quantum gravity).
Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars
With this simple calculation you get something like 10 22 to 10 24 stars in the Universe. This is only a rough number, as obviously not all galaxies are the same, just like on a beach the depth of sand will not be the same in different places.
Description of Phantasy Star Universe. Here is the video game “Phantasy Star Universe”! Released in 2006 on Windows, it's still available and playable with some tinkering. It's a role-playing (rpg) game, set in an anime / manga, persistent universe and sci-fi / futuristic themes.
Although main-sequence Red dwarfs are the most common stars in the universe, there are 7 main types of stars in total. Here is some information about each type of known star in our universe. Below, is a simple star color temperature chart that provides examples of some of the most well-known stars in the night sky, and their colors.
Star Wars is an American epic space opera multimedia franchise created by George Lucas, which began with the eponymous 1977 film and quickly became a worldwide pop-culture phenomenon.The franchise has been expanded into various films and other media, including television series, video games, novels, comic books, theme park attractions, and themed areas, comprising an all-encompassing fictional...
The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun.
Inspired by a recent Reddit thread, we here at HuffPost Entertainment would love to know what fictional movie universe you would most want to live in. Though any fictional universe will do, of course, some may be more appealing to others. While it might be interesting to live in Ridley Scott’s “Alien” universe for example, it might not be the best...
The universe (Latin: universus) is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.The Big Bang theory is the prevailing cosmological description of the development of the universe. According to estimation of this theory, space and time emerged together 13.799 ± 0.021 billion years ago, and the universe has been expanding...
Perhaps not. Astrophysicist and musician Matt Russo takes us on a journey through the cosmos, revealing the hidden rhythms and harmonies of planetary orbits. The universe is full of music, he says -- we just need to learn how to hear it. This talk was presented to a local audience at TEDxUofT, an independent event.
That’s more than 275 million stars per day in the observable universe. Stars keep themselves fueled. They fuse elements together to make new elements. While we can’t make an actual star on Earth, some scientists are curious about creating this kind of reaction in the lab. In stars, hydrogen atoms fuse together to make helium.
This red hypergiant star is estimated to be around a thousand times the radius of the Sun and is currently regarded as one of the largest such stars in the Milky Way. Located in the direction of the constellation Cepheus, VV Cephei A is about 6,000 light-years from Earth and is actually part of a binary star system shared with a companion smaller blue star.
Star Trek: Discovery is deep into its Mirror Universe story arc. Greg is here to give you the history of Star Trek's Mirror Universe and the Terran Empire.Su...
Phantasy Star Universe is now able to be played on PC!! There is a private server that has finally been opened for Phantasy Star Universe that I have been playing on.. It is in open Beta so there are still some things that need to be worked out keep that in mind..
Here's the short answer: That question doesn't make sense. The universe is everything, so it isn't expanding into anything. It's just expanding. All of the galaxies in the universe are moving away from each other, and every region of space is being stretched, but there's no center they're expanding from and no outer edge to expand into anything else.
How the universe works – Answer Key Star dust is the building blocks of life. Every atom in your body was produced inside the fiery core of the sun. All life begins with stars. In our galaxy there are over 100 billion stars and in the universe there are over 100 billion galaxies. There are more stars than there are grains of sand on earth. Every star can...
NEW YORK — All the stars, planets and galaxies that can be seen today make up just 4 percent of the universe. The other 96 percent is made of stuff astronomers can't see, detect or even comprehend....
The smallest known star right now is OGLE-TR-122b, a red dwarf star that’s part of a binary stellar system. This red dwarf the smallest star to ever have its radius accurately measured; 0.12 solar...
It was knowing this fundamental distance from the Earth to the Sun that helped us find the true scale of the entire Solar system for the first time. Image to right: Our sun, the nearest star, is 93 million miles away. That's why the sun, which is a million times the size of the Earth, looks so small.
The universe is much bigger than it looks, according to a study of the latest observations. When we look out into the Universe , the stuff we can see must be close enough for light to have reached us since the Universe began.
Listen: Is our universe actually a hologram? One of the most mind-blowing ideas in physics, called the holographic principle, is that our universe is actually a hologram. “It turns out that this...
Phantasy Star Universe had a 'free to play' client distributed on its Japanese website, by normal circumstances you would not be able to play it since even Offline on PC requires GameGuard. That said, there is a patch that removes the GameGuard check and changes the language to English (but voices will remain in Japanese). 1 level 2
The fictional universe of the Star Wars franchise features multiple planets and moons. While only the feature films and selected other works are considered canon to the franchise since the 2012 acquisition of Lucasfilm by The Walt Disney Company , some canon planets were first named or explored in works from the non-canon Star Wars expanded universe , now rebranded Star Wars Legends.
Our Sun is just one of about 200 billion stars in our galaxy. That gives scientists plenty of places to hunt for exoplanets, or planets outside our solar system. But our capabilities have only recently progressed to the point where astronomers can actually find such planets.
For the Universe, the galaxies are our small representative volumes, and there are something like 10 11 to 10 12 stars in our Galaxy, and there are perhaps something like 10 11 or 10 12 galaxies. With this simple calculation you get something like 10 22 to 10 24 stars in the Universe. This is only a rough number, as obviously not all galaxies are the same, just like on a beach the depth of sand will not be the same in different places.
A 2008 estimate by the Sloan Digital Sky Survey (which catalogs all the observable objects in a third of the sky) found about 48 million stars, roughly half of what astronomers expected to see. A...
Star Size Comparison: The biggest/largest known stars in the Universe.VY Canis Majoris (VY CMa) is a red hypergiant star located in the constellation Canis M...
Star Wars is an American epic space-opera media franchise, centered on a film series created by George Lucas that includes Star Wars (1977), The Empire Strikes Back (1980), and Return of the Jedi (1983). The series depicts the adventures of various characters "a long time ago in a galaxy far, far away". Many derivative Star Wars works have been produced in conjunction with, between, and after...
Phantasy Star Universe had a 'free to play' client distributed on its Japanese website, by normal circumstances you would not be able to play it since even Offline on PC requires GameGuard. That said, there is a patch that removes the GameGuard check and changes the language to English (but voices will remain in Japanese).
According to Star Trek Maps (p. 26), Janus VI was a class-H planet and one of ten planets orbiting the moderate yellow star Janus. According to The Worlds of the Federation (p. 110), Janus was a class-E planet known as Shaul by the Horta. According to the RPG sourcebook Worlds, Janus VI was located in the Alpha Janus system.
This is a list of stars arranged by their apparent magnitude – their brightness as observed from Earth. It includes all stars brighter than magnitude +2.50 in visible light, measured using a V-band filter in the UBV photometric system.For variable stars, the listing is by maximum brightness. Stars in binary systems (or other multiples) are listed by their total or combined brightness if they...