In 2011, a project that surveyed the Milky Way galaxy for exoplanets — which are planets beyond our solar system — spotted an ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Astronomers may have found a star racing through our galaxy at an incredible speed—dragging a planet along with it! If ...

Scientists found an intriguing world in our galaxy.

"With an orbital period of 570 days, it is a relatively cold gas giant planet," said Guðmundur Stefánsson of the University ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

With this answer comes more of an idea about where planets are likely to form in our galaxy. They have found that stars with high-mass planets have higher metallicity than those with lower amounts ...

Astronomers may have discovered the fastest-moving planet system ever found, moving through our galaxy at speeds of at least ...

The first planet that was discovered around a star ... Unlike the sun, most stars in our galaxy have companions, with two or ...

Stars that currently live in the galaxy’s thick disk were born ... but he thinks the conclusion holds for larger planets, too. “If our theory is correct, and these disks really didn’t ...