These new "space sound" clips were released to celebrate the 25th anniversary of NASA's Chandra X-ray Observatory, the world's most powerful X-ray telescope. Launched in 1999, Chandra has been ...

The Milky Way is our home galaxy home to 100-400 billion stars (no one is quite sure how many). It’s a spiral galaxy estimated to be about 13.6 billion years old. It's 100,000 light-years across.

You might wonder what would happen if our disk-shaped spiral galaxy were to one day collide with Andromeda, which is over twice the size of the Milky Way. Astronomers anticipate such a cosmic ...

NASA has dubbed the large spiral galaxy the Milky Way’s ‘big brother’. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. With spiral ...

our Milky Way (MW) galaxy will undergo the most impactful event of its celestial existence. It will collide with Andromeda (M31), the nearest spiral galaxy to our own, located about 2.5 million ...

Astronomers have examined the Extreme Outer Galaxy, also known as the outskirts of our Milky Way galaxy, using the ...

The sun formed within a cloud of gas in a spiral arm of the Milky Way galaxy. A vast disk of gas ... or in stars that withered into white dwarfs. With stars no longer actively burning, energy ...

Space is really really big. Planet Earth is located in one of the spiral arms of the Milky Way (called the Orion Arm) which lies about two-thirds of the way out from the center of the galaxy.

The Milky Way got its name from the way it looks from the ground: like a streak of spilt milk across the sky. That hazy white band is ... look like an enormous spiral about 100,000 light years ...

In this feature, learn the difference between pulsars and quasars, antimatter and dark matter, brown dwarfs and white dwarfs ... nearest large spiral galaxy to the Milky Way, about 2.5 million ...

a near twin of our Milky Way, is barreling toward us at a staggering 110 kilometers per second. You can already see it coming, if you know where to look—Andromeda’s great spiral appears as a ...