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 ...

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

A supernova close enough to Earth could strip the ozone layer and cause mass extinction, but no immediate threat exists.

An international team led by researchers in Japan and Europe has discovered a new multi-planet system around a sun-like star, ...

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

Fast radio bursts — powerful and poorly understood cosmic eruptions — tend to occur in massive galaxies that host long-dead ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

The researchers revealed that Uranus’s protective magnetic field was distorted, and seemed wonky and weak, being squashed and ...

It may sound illogical, but growing evidence shows the benefits of testing yourself before you start learning new material ...

Why does Jupiter look like it has a surface – even though it doesn’t have one? – Sejal, age 7, Bangalore, India ...

Scientists may have explained a mystery that has puzzled us about Uranus for decades. Researchers believe that data that ...

If you didn't know, Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. Let's explain ...