Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

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

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

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

If it’s real, some may question whether something with a mass about three times Pluto’s counts as a planet at all.

During the first nights of February, the crescent moon should line up with the planets as well. The planets are spread far ...

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...

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

Davis Astronomy Club invites everyone on the evening of Saturday, Jan. 25, for a free viewing of the rare alignment of six ...

While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...