Articles on Andromeda

Displaying all articles

Can a galaxy (like NGC 3810 in this case) have a classical spiral structure and also be already dead? ESA/Hubble and NASA

Is our Milky Way galaxy a zombie, already dead and we don’t know it?

Extragalactic astrophysicists want to know how and why galaxies stop forming stars, change their shape and fade away. With help from citizen scientists, they're figuring it out.
The origin of today’s burst of energy has astronomers puzzled. AP Photographie /Flickr

Heavens above! What made the cosmic flash that lit Earth today?

A titanic eruption in our neighbouring galaxy, Andromeda, has sent shockwaves through the astronomical community here on Earth. NASA’s Swift satellite detected a flood of gamma rays at 21:15 UTC yesterday…
The Andromeda galaxy and its companions is challenging the very foundations of cosmology. Adam Evans/Wikimedia Commons

Cosmic dance challenges our understanding of the universe

Deep images of the sky reveal that the universe contains billions of galaxies. Some, such as our own Milky Way, are immense, containing hundreds of billions of stars. Most galaxies, however, are dwarfs…

Top contributors