galaxies

Part of the Milky Way Is Much Older Than Previously Believed

The Milky Way is older than astronomers thought, or part of it is. A newly-published study shows that part of…

3 years ago

New Photos Show a Black Hole Blasting out Powerful Winds

Pictures of galaxies never cease to amaze, and astronomers are consistently coming up with new ones that provide a different…

3 years ago

Missing Mass? Not on our Watch—Dr. Paul Sutter Explains Dark Matter

In the first episode of a new series with ArsTechnica - Edge of Knowledge - Dr. Paul Sutter explains the…

3 years ago

Nancy Grace Roman Telescope Will do its Own, Wide-Angle Version of the Hubble Deep Field

Remember the Hubble Space Telescope's Deep Field and Ultra-Deep Field images? Those images showed everyone that what appears to be…

3 years ago

Astronomy Jargon 101: Irregular Galaxies

In this series we are exploring the weird and wonderful world of astronomy jargon! You’ll feel a little odd after today's…

3 years ago

Astronomy Jargon 101: Galactic Halo

In this series we are exploring the weird and wonderful world of astronomy jargon! You’ll wrap your head around today's topic:…

3 years ago

A Gravitational Lens Shows the Same Galaxy Three Times

Images from the Hubble Space Telescope are often mind-bending in both their beauty and wealth of scientific wonder. And sometimes,…

3 years ago

A Black Hole has been Found Lurking Just Outside the Milky Way

Astronomers have found a smaller, stellar-mass black hole lurking in a nearby satellite galaxy of our own Milky Way.  The…

3 years ago

It Turns out There Were Supernovae Exploding all Over, we Just Couldn’t see Them

When the poet Horace said “We are but dust and shadow”, he probably didn’t think that dust itself could create…

4 years ago