How far is the sun from the center of the Milky Way? https://www.youtube.com/channel/UCUHI67dh9jEO2rvK–MdCSg, Support us at: https://www.patreon.com/universetoday If you think that is amazing, perhaps equally remarkable is the fact that we know this to better than 1% precision. 36:20 Why do I think multicellular life is rare? Once again, measurements by WMAP on the CMBR have revealed a monumental confirmation – the Universe is flat. We are now in the stage of the universe’s evolution in which it is continuing to expand and grow larger. A cluster of galaxies from NGC 300 images. And yet, certain phenomena such as gravitational lensing, temperature distributions, orbital velocities and rotational speeds of galaxies, and all others that are evidence of a missing mass justify their probable existence. Post was not sent - check your email addresses! The known Universe contains 100 billion galaxies grouped in superclusters and separated by empty space. Source: NASA. At least two and often more curving arms of stars spin and twirl around the center. FlourishAnyway from USA on July 27, 2018: You have a way of explaining complex topics so that anyone can see understand them. Follow us on Twitter: @universetoday Amanda Littlejohn (author) on July 15, 2019: Thanks for your interesting contribution! The earth is not the center of the Universe. This article explains what the Universe is, how it … Sources: 12 billion years ago the first galaxies came into existence. He was the first to realize that the planets are held in their orbits by gravity rather than angels. 05:54 Have we learned any more about Venus? 55:45 Is interstellar space cold or hot? Either it will remain in that state indefinitely or it could explode again, creating a new universe. In doing so, he laid the foundations of all the most exciting discoveries about the universe that came after him. The vast empty spaces are known as voids. Despite a chronic degenerative disease leaving him almost entirely paralyzed, Stephen Hawking stands out as one of the greatest physicists of our age. Combining this geometry and the idea of an invisible entity known as dark energy coincides with the widely accepted ultimate fate of our universe, which as stated earlier, is a Big Freeze. An image of the cannibal galaxy named ESO 243-49, By NASA, ESA, and S. Farrell (University of Sydney, Australia and University of Leicester, UK). By combining galaxy groups and clusters, we come up with superclusters. And no again, our galaxy is not the entire universe, neither is it the center. 5 billion years ago our own special star, the sun, formed the solar system from rocks and ice attracted by its gravitational field. Thanks for pointing out the typo! Observations made on globular clusters, which contain the oldest stars, have also pointed to values close to this. Our Book is out! After 300,000 years the first particles of matter appeared. Feel free to come up with a longer list of your own. 11:15 How small would Earth be as a black hole? There you have it. We’ve got our own top 10 list on the most interesting facts about the Universe. A photo of the the irregular galaxy NGC 1427A taken by the Hubble Telescope. 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. play; Make a Galaxy Montage.
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