Using the Sloan Digital Sky Survey, researchers have discovered a stream of stars believed to be the remnant of an ancient cluster slowly being ingested by our own Milky Way galaxy.
An international team of astronomers has created a catalogue of more than 84 million stars in the central parts of the Milky Way using a 9-gigapixel image from the VISTA infrared survey telescope.
NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has taken its first look at the giant black hole at the center of our galaxy - and caught it right in the middle of a flare-up.
NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy.
Our Milky Way Galaxy is surrounded by an enormous halo of hot gas hundreds of thousands of light years across, and with as much mass as all the stars in the galaxy.
Astronomers have for the first time found other groups of galaxies that are just like ours.
An average of two massive stars in our Milky Way galaxy explode each century, producing magnificent supernovae when they detonate.
Our galaxy is still reverberating from a strike by a small galaxy or massive dark matter structure.
Deep in the Milky Way constellation of Scorpius (The Scorpion) lies the War and Peace Nebula, or NGC 6357. This is a vast region of space where new stars are born in of chaotic clouds of gas and dust.
Following a successful launch, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has begun its mission to discover secrets of buried black holes and other exotic objects.
Look out: we're headed for a crash. In, ooh, just four billion years or so our Milky Way galaxy is set to collide with neighboring Andromeda.
Astronomers have determined that the Milky Way's central black hole was quite active in the past.
Most galaxies, including our own Milky Way, feature a supermassive black hole at their center weighing millions to billions of suns.
But how do those black holes grow so hefty?
Astronomers have long searched for habitable exoplanets orbiting red dwarf stars (M dwarfs), which are considered the most common type of star in the Milky Way galaxy.
A study of X-rays emitted a long time ago in a galaxy far, far away has positively identified a stellar mass black hole in Andromeda, a spiral galaxy located about 2.6 million light-years from Earth.
The supermassive black hole known as Sagittarius A has been observed emitting X-ray flares, lasting a few hours, about once a day.
The vast majority of stars in our Milky Way galaxy have at least one planet orbiting them, astronomers have concluded - and lots of these could be comparatively Earth-like.
Astronomers using ESO’s Very Large Telescope have spotted a giant gas cloud being sucked into the supermassive black hole at the heart of our galaxy.
Australian astronomers say they've found proof of a vast filament of material that connects our Milky Way galaxy to nearby clusters of galaxies and on to the rest of the universe.
UC Irvine astronomers have shown how the Milky Way galaxy's iconic spiral arms were formed - through an intergalactic collision.