Galaxy

The incredible discovery will help astronomers unlock the secrets of the universe's very first galaxies.

Astronomers previously thought these events only occurred around 3 billion years after the Big Bang, but they were happening when the universe was only half that age.

The "unprecedented map" captures the position and brightness of nearly 1.7 billion stars.

Widening waistbands are truly universal.

Scientists think the galaxy is expanding at about 550 yards per second.

Lying some 63 million light-years from the Milky Way, the elliptical galaxy NGC1052-DF2 seems to be completely made up of normal matter.

"It's not Swiss watch precision," researchers say.

As one astronomer put it: "Wow!"

A new theoretical model of dark matter suggests it contains two distinct varieties of charged particles, which would allow it to form compact objects.

The planets sit in a galaxy 3.8 billion light years away.

Their orderly rotation is at odds with the standard dark matter model.

The galaxy cluster, featured in a Hubble Space Telescope photo, weighs in at three million billion suns.

The gassy giant has big implications for physics.

The ancient embryonic galaxy existed just 500 million years after the start of the universe.

The largest radio galaxy that they discovered was about 8.44 million light-years wide.

It belongs to "a class of mythical beasts in astrophysics," and there may be many more waiting to be discovered.

A newly “ancient” galaxy may help us better understand how and why galaxies take on their many beautiful shapes and forms.

An academic casts light on what it means when the sun goes dark.

The galaxy in question appears as it was 11 billion years ago, just 2.7 billion years after the Big Bang.

The galaxy allows astronomers to see what things were like 600 million years after the Big Bang.