NASA’s Europa Clipper is set launch in October to explore the habitability of an ice-covered ocean world in our solar system ...

Astronomers on Maunakea on Hawai‘i Island have spotted the biggest pair of black hole jets ever seen, spanning 23 million ...

"Hydrogen sulfide is a major molecule that we didn't know was there. We predicted it would be, and we know it's in Jupiter, ...

"The most exciting part of the HSC was the discovery of 11 objects at distances beyond the known Kuiper Belt," said Yoshida.

Our Solar System has eight planets, a few dwarf planets and more than 200 moons. But wait. Are you seeing double? Or did every planet suddenly get a twin? Where would each planet’s double fit in? Why ...

Our ancestors noticed that among the “fixed stars”, which remained in unchanging patterns, there were five “wandering stars”, ...

So far, searches for the hypothetical Planet Nine have yielded no such world. There are many possible reasons for this, one ...

Celebrate a Harvest Moon lunar eclipse and an occultation of the planet Saturn, just days before Neptune reaches opposition.

If you told me a couple, who traces their ancestry back to the Hatfields and McCoys, found the body of the suspected Kentucky ...

Flybys of primordial black holes may occur once a decade. Tweaks to the orbits of planets and GPS satellites could give away their presence.

A passing star may have kicked the weird moons of giant planets like Jupiter and Saturn into place, new research suggests.

The enormous asteroid, dubbed the "God of Chaos" or 99942 Apophis, is said to be on a collision course with Earth - and the ...