An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Mars is home to perhaps the greatest mystery of the solar system: the so-called Martian dichotomy, which has baffled ...

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

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 ...

Venus and Saturn are currently in conjunction, meaning the planets appear close together in the night sky from Earth. These ...

The seven planets will not be perfectly aligned, but will appear in an arc across the sky due to their orbital plane in the ...

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

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

Mars helicopter Ingenuity appears to be missing rotor blades in Perseverance rover imagery captured. The rover's SuperCam ...