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

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

In October 2020, a van-sized robotic spacecraft briefly touched down on the surface of Bennu, a 525-meter-wide asteroid 320 ...

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

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 ...

Tonight and throughout January, stargazers can see a planetary alignment in the night sky or what some are calling a ...

In the depth of winter, a sweeping view of our solar system will glow in the night sky. In total, six planets will be visible ...

Starting up again Saturday, a sweeping view of our solar system will glow in the night sky. The planetary alignment, or a ...

Mars will be making its closest approach to Earth in two years, and thus, the mighty red planet, named for the god of war ...

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 ...

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's ...

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