The puzzle is why most Milky Way satellites appear to have stopped forming stars long before their counterparts around ...

A Swarm of Dwarf Galaxies Buzz Around Our Milky Way's Twin Imagine the Milky Way and Andromeda as two massive aircraft ...

The Andromeda galaxy, our cosmic neighbor, is far more turbulent than previously thought. A new survey by the Hubble Space Telescope has mapped the chaotic history of Andromeda’s dwarf galaxy system, ...

When you have only one system to analyze ... "What we're seeing is that similar satellites in Andromeda can form stars up to a few billion years ago—around 6 billion years." ...

"Everything scattered in the Andromeda system is very asymmetric and perturbed. It does appear that something significant happened not too long ago," Weisz said. "Our work has shown that low-mass ...

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"We do find that there is a lot of diversity that needs to be explained in the Andromeda satellite system," said Daniel ... either stopped forming stars billions of years ago, or have only ...

Our Milky Way system also hosts dozens of these satellites ... "What we're seeing is that similar satellites in Andromeda can form stars up to a few billion years ago—around 6 billion years." ...

But one backyard astrophotographer has shattered that notion with a stunning photo of the Andromeda Galaxy, revealing individual stars and swirling ... some of our solar system’s planets ...

This galaxy, designated Andromeda XXXV, and its compatriots orbiting our neighbor galaxy, Andromeda, could change how we think about cosmic evolution. That's because dwarf galaxies this small ...

Andromeda XXXV contains an estimated 20,000 Suns worth of stars and lies about half a million ... has yet to view the system. JWST or NASA’s upcoming Roman Space Telescope could nail down ...