Astronomers are closing in on evidence that a massive, unseen planet may exist far beyond Neptune. This discovery could ...

Scientists found a mysterious rogue planet roaming aimlessly outside our solar system. What if it came closer?

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

BRITS are clueless about our solar system – with four in 10 unable to identify the biggest planet and a quarter uncertain ...

Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...

Observations with the instrument SPHERE at ESO's Very Large Telescope have produced an unprecedented gallery of "debris disks" in exoplanetary systems.

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

Almost all planets in our solar system have moons – why not exoplanets? Astronomers believe they have discovered the first ...

One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer ...

Scientists studying samples from the Bennu asteroid located not too far from Earth continue to find clues as to how life ...