It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

A groundbreaking discovery was recently made about the largest comet ever observed hurtling toward the sun from the Oort Cloud in the outer reaches of our solar system. Astronomers recently got a ...

New footage shows comet C/2025 K1 Atlas splitting into three pieces after coming close to the sun, giving astronomers fresh insight into how comets react to extreme heat.

Several planets, including Mercury, Mars, Venus, Uranus, Neptune, Saturn, and Jupiter, are visible this month. Saturn's moon Titan will cast its shadow on Saturn twice during July. Neptune will be ...

A large asteroid-comet hybrid that orbits between Neptune and Jupiter is an intriguing oddball as far as cosmic rocks go. Chiron, as the strange centaur is called, is what astronomers call a minor ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete more of their gas and dust. Consequently, they don’t typically emit as much ...

The brief, bright appearance of Comet C/2025 A6 (Lemmon) is rapidly drawing to a close, giving stargazers a final, narrow window to observe the icy object before it retreats. Having made its closest ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The moon, the Milky Way, Saturn, Venus, Jupiter Mars, Neptune, Uranus and comet C/2024 G3 seen ...

(NEXSTAR) — Skywatcher or not, you’ve likely heard of Halley’s comet. As popular as it is, however, seeing it may be a once-in-a-lifetime occurrence for some. The comet, often referred to as just ...

The comet Tempel 1 (shown) was also studied this decade, though Wild 2 is the first comet whose particles were analyzed on Earth. Science After a thorough analysis of particles collected from a comet ...