Astronomers produced the most complete map of the center of the Milky Way, which can provide insight into how stars and planets are formed.

IMAGE: An artist’s impression of a free-floating planet. Using observations and archival data from several of NSF’s NOIRLab’s observatories, together with observations from telescopes around the world ...

(AP) Our Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That’s more than two Earth-size planets for every person on the globe. Just how ...

The Central Molecular Zone of the Milky Way is a fascinating area at the core of our galaxy. It's rich in a variety of chemical elements, filled with the building blocks of stars, planets, and even ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy. These "free-floating" worlds don't orbit stars, but instead roam the ...

Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

Over 4 billion years ago, as planets were coalescing around the newborn Sun, our star may have gone on an epic road trip across the Milky Way along with thousands of stellar "twins." And we may owe ...

Using observations and archival data from several of NSF’s NOIRLab’s observatories, together with observations from telescopes around the world and in orbit, astronomers have discovered at least 70 ...

NASA says a group of scientists may have discovered signs of a new planet beyond the Milky Way. The potential discovery could be the first-ever planet found in another galaxy. The potential planet, ...

How many planets do you think are in this photo? At least hundreds of thousands according to a new joint Japan-New Zealand survey that scanned the center of the Milky Way in 2006-2007 looking for ...

Milky Way season, when the galaxy's bright center is visible, is underway. The best viewing time in the Northern Hemisphere ...