In this space wallpaper, a runaway planet zooms through interstellar space. New research suggests that the supermassive black hole at our galaxy’s center can fling planets outward at ...

In this space wallpaper, NASA's prolific planet-hunting spacecraft has hit the jackpot again, discovering 11 new planetary systems with 26 confirmed alien planets among them.

Throughout the universe, trapped in the halos of dark matter, there is enough planet-making material to create at least 1,000,000,000,000,000,000,000 more Earth-like planets. A billion trillion of ...

These are the 10 most bizarre planets that we know exist in our universe. 10. The Planet That Is Pink NASA's Goddard Space Flight Center/S. Wiessinger / Public domain.

The universe has two kinds of matter. There is invisible dark matter, known only because of its gravitational effects on a ...