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 ...

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 ...

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

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

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

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 ...

The planets in our solar system orbit the sun essentially along ... "while they careen around the cosmic racetrack," according to NASA. While alignments themselves aren't special, what could ...

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