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 ...

To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most ...

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 ...

Moons orbit planets ... a little more complicated. Our galaxy is part of a collection of galaxies called the Local Group, ...

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 ...