Astronomers are testing a quieter way of searching for moons beyond the solar system, using careful measurements of motion ...

A new discovery suggests the possibility of an exomoon with an unprecedentedly large mass, thousands of times larger than any ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

The planet HD 189733 b was discovered in 2005, as one of many huge gas worlds snuggled tightly against their suns. It gradually gained popularity for .

From a distance, it looks like a serene blue twin of our own world, a dot that could almost pass for Earth in a telescope ...

It looks like a sapphire jewel in space, but HD 189733bis anything but serene. With winds reaching seven times the speed of ...

Seán Jordan does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Billions of years ago, Earth was an uninhabitable rock covered in magma. Scientists are still working to decipher the tale of how it transformed into a blue and green orb teeming with life. However, ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that led to biology, or when the first primitive life forms appeared. But what ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers discovered that bridgmanite deep in the mantle can store far more water at high ...

The number of billionaires worldwide – and their combined wealth – reached record highs this year, buoyed in particular by gains in tech stocks, Swiss bank UBS has found. The world had 2,919 ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals. When you purchase through links on our site, we may earn an ...