The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

It took two years for NASA's OSIRIS-REx space probe to return from asteroid Bennu before dropping off a small capsule as it ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

Purdue professor along with a team of scientists analyze asteroid samples from NASA’s OSIRIS-REx mission to give a better understanding of the past.

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

NASA scientists found amino acids, key minerals, and nucleobases for DNA in samples from the OSIRIS-REx asteroid mission.

For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...

All forms of Earth life have specific chemicals in their makeup, such as amino acids and sugars. Scientists have known that ...

Samples of asteroid Bennu contain molecules that suggest the "conditions necessary for life" were widespread across the early ...

HWO will be the first space telescope built to find potentially habitable planets and analyze their atmospheres for signs of ...