Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

Our Milky Way galaxy is home to at least 100 billion alien planets, and possibly many more, a new study suggests. "It's a staggering number, if you think about it," lead author Jonathan Swift, of ...

Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda. But a new ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

The Milky Way and the neighboring Andromeda galaxy are currently hurtling through space toward each other at a speed of about 250,000 miles per hour (400,000 kph), setting up a possible future ...

From this analysis, they estimate that there are about 20 times more free-floating worlds in our Milky Way than stars, with Earth-mass planets 180 times more common than rogue Jupiters.

The Milky Way is home to hundreds of billions of stars, and many more planets. Some come in sets, as in our own solar system. But not every planet orbits a star. To hear more feature stories, get ...

The find, announced Wednesday, can help explain how solar systems across the Milky Way galaxy came to be. This one is 100 light-years away in the constellation Coma Berenices. A light-year is 5.8 ...

Just 20 years ago, astronomers had no direct evidence that planets orbited other stars. Now, researchers estimate that the Milky Way galaxy contains a vast amount of planets, with Earth-sized ...

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 ...

Rudimentary math says that, if the Milky Way has 400 billion stars, each with 1.6 planets, there are roughly 640 billion planets. If it winds up having 200 billion stars, 320 billion would remain ...

The first planets beyond the Milky Way may have been discovered The "rogue" worlds are said to be located 3.8 billion light-years away. Feb. 5, 2018, 4:43 PM EST / Updated Feb. 6, 2018, 11:48 AM EST ...