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Observable universe contains two trillion galaxies, 10 times more than previously thought

Using data from deep-space surveys taken by NASA's Hubble Space Telescope and other observatories, astronomers have performed a census of the number of galaxies in the universe. The team came to the surprising conclusion that there are at least 10 times as many galaxies in the observable universe than previously thought. The results have clear implications for our understanding of galaxy formation, and also helps shed light on an ancient astronomical paradox -- why is the sky dark at night? Ref. Source 2x.

Universe The Location Our

Farthest stars in Milky Way might be ripped from another galaxy

The 11 farthest known stars in our galaxy are located about 300,000 light-years from Earth, well outside the Milky Way's spiral disk. New research shows that half of those stars might have been ripped from another galaxy: the Sagittarius dwarf. Moreover, they are members of a lengthy stream of stars extending one million light-years across space, or 10 times the width of our galaxy. Ref. Source 5w.

Our Location In The Universe UFO & Writing Art Education Sciences

Milky Way: Hydrogen halo lifts the veil of our galactic home

Astronomers have reported the first detections of diffuse hydrogen wafting about in a vast halo surrounding the Milky Way. Ref. Source 9l.

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Milky Way could have 100 billion brown dwarfs. Our galaxy could have 100 billion brown dwarfs or more according to a recent survey of dense star clusters, where brown dwarfs are abundant. Source 3x.

Universe The Location Our

Milky Way's origins are not what they seem. Up to half of the matter in our Milky Way galaxy may come from distant galaxies, astrophysicists have discovered in a first-of-its-kind analysis. As a result, each one of us may be made in part from extragalactic matter. Using supercomputer simulations, the researchers found an unexpected mode for how galaxies acquired matter: intergalactic transfer. Supernova explosions eject copious amounts of gas from galaxies, causing atoms to be transported from one galaxy to another via powerful galactic winds. Source 1r.

Our Location In The Universe

Archeology of our Milky Way's ancient hub. A new analysis of about 10,000 normal Sun-like stars in the Milky Way's bulge reveals that our galaxy’s hub is a dynamic environment of variously aged stars zipping around at different speeds. Source 3j.

Our Location The Universe - Page 2

Is the Milky Way getting bigger? The galaxy we inhabit, the Milky Way, may be getting even bigger, according to new research. Source 2m.

Our Location The Universe Sciences Education Art Writing & UFO - Page 2

Stars memorize rebirth of our home galaxy. The Milky Way has died once before and we are now in what is considered its second life, according to researchers whose calculations have revealed previously unknown details about our galaxy. Source 7q.