How many planets are there in our solar system? Nine? Eight? Twelve? Hundreds? I know many will insist there are nine, with Pluto as the ninth planet, but ...

Astronomers at the Complutense University of Madrid first spotted this intriguing event using a powerful telescope in ...

This week, revisit what you know about Uranus, explore the far side of the moon, rediscover the famed fossil known as Lucy, ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

Scientists are reconsidering old information about Uranus. NPR's Scott Simon explains the problem with photos taken of the ...

Solar and cosmochemical data indicate high levels of carbon, nitrogen, and oxygen in the Sun. Researchers have unveiled a new ...

Some minerals in lava could suggest water is nearby.

The movements of the planets in the Solar System are pretty difficult to get your head around, even before we get started on ...

Samples collected from the near-Earth asteroid Ryugu have revealed clues about a primordial magnetic field that helped ...

By probing chemical processes observed in the Earth's hot mantle, Cornell scientists have started developing a library of ...

Subscribe today and save an extra 5% with checkout code 'LOVE5' Engaging articles, amazing illustrations & exclusive ...

The roughly six-hour flyby in 1986 revealed Uranus' protective magnetic field was strangely empty. Now, researchers say that ...