Before our minds start to reel at these scales, let's return to the Andromeda Galaxy and examine it from our vantage point on the dust-grain planet we call Earth. The remarkable thing is that the ...

revealing that our planet was much larger than the known world at the time. Today, we know the Andromeda galaxy, one of an estimated 6 to 20 trillion galaxies in our universe, is about 2.5 ...

"You can’t do that with any other large galaxy." Here's how to see it: Planetary alignments aren’t rare, but 6 visible ...

planet, or moon, usually mediated by a rotating disk. Active galaxy—A galaxy with an unusually strong output of energy, thought to be powered by a supermassive black hole in its core. Andromeda ...

"It's like photographing a beach and resolving individual grains of sand." Astronomers announced last week that they had completed a decade-long, meticulous effort to assemble a full portrait of ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and ...

A close-up view of a prodigious number of stars in the Andromeda galaxy. Credit: NASA / ESA / B. Williams (U. of Washington) The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 ...

Today’s 3 Brilliant Minutes is out of this world -- and out of this galaxy! A European Space Agency probe gives us new ...

Messier 32 resembles the stripped-down core of an ex-spiral galaxy in the nearby vicinity, suggesting the two may have had a coming together in the distant past. Weisz continues: “Andromeda ...

This illustration shows a stage in the predicted merger between our Milky Way galaxy and the ... [+] neighboring Andromeda galaxy, as it will unfold over the next several billion years.

That’s almost half the distance to Andromeda. Have you ever seen the Andromeda galaxy? Go outside after dark this month and look high up in the northeast sky and you’ll find the W-shaped ...

Here's how to see it: Planetary alignments aren’t rare, but 6 visible planets are. Hubble, with its sharp imaging capabilities, detected more than 200 million stars in the Andromeda galaxy that ...