There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

The idea of an asteroid striking the Earth is quite alarming to most of us – after all, it was the impact of a massive asteroid that is thought to have wiped out the dinosaurs, as well as 75% of the ...

Data suggests K2-18b is a "world with an ocean that is teeming with life," said study lead author Nikku Madhusudhan, an astrophysicist at the University of Cambridge in England. A whopping 8.6 times ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects. A surprising chemical difference between Pluto and Sedna, another dwarf ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

From our small blue planet to the farthest reaches of the observable cosmos, this breathtaking journey explores the true ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

Understanding exoplanet evolution could help solve the mystery of the 'hot Neptune desert.' As astronomers delve deeper into the diversity of worlds orbiting distant stars, a new study suggests ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

Below the waves of the Mediterranean, Europe's KM3NeT neutrino telescope is on a cosmic hunt. Towering strings of sensors ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

An orb with twin suns, a star twice as old as our sun... see how new finds with surprising parallels in fiction are rewriting our understanding of the universe.