Our Milky Way galaxy is massive at around 100,000 light-years across, making the prospect of directly observing any planets beyond our galaxy with conventional telescopes basically impossible. But ...

Scientists have developed a new and improved method to better understand "steam world" exoplanets, a move that could refocus ...

Scientists have found that around one-third of planets orbiting dwarf stars across the galaxy may orbit at the right distance for liquid water to exist.

NASA’s Hubble Space Telescope has discovered 16 extrasolar planet candidates orbiting a variety of distant stars in the central region of our Milky Way galaxy. The planet bonanza was uncovered ...

Rogue planets in our galaxy could number in the tens of billions and possibly even trillions, according to new research published in the Astronomical Journal.

From a new pair of planets like Tatooine of "Star Wars" fame, each with its own pair of suns, to a trio of small rocky planets zipping around a red-dwarf star, the cosmos presents a breathtaking ...

Our Milky Way galaxy is home to at least 100 billion alien planets, and possibly many more, a new study suggests.

A new model suggests that all planets form from water molecules—and so the Milky Way may be swarming with rocky planets with oceans and continents just like on Earth.

An image of the distant galaxy where the planets were found. Surrounding it are four images of the quasar behind it, created by the light bending around the galaxy.