Supermassive stars may have formed by repeatedly eating their siblings

Some black holes are way bigger than we can explain, and they may have come from…

Venus may have an underground magma ocean spanning the whole planet

When Earth and Venus formed, they both had global magma oceans deep underground. Earth’s has turned…

Cecilia Payne-Gaposchkin: The unsung discoverer of star chemistry

Cecilia Payne-Gaposchkin, who discovered that hydrogen dominates our universe, finally gets the recognition she deserves in…

Pluto formed quickly with a deep ocean covering its entire surface

Pluto’s ancient oceans may have come about just after the icy world was born, melting from…

We still don't understand a basic fact about the universe

Our measurements of the Hubble constant can’t seem to come up with a consistent answer. What…

Tiny meteorite found in Antarctica came from an unknown asteroid

A tiny meteorite found in Antarctica doesn’t match any asteroid or comet we know of. Instead,…

Interstellar comet Borisov may be breaking up as it exits solar system

The first-ever interstellar comet is showing signs of brightening, suggesting it may have been heated up…

Bombing asteroid Ryugu reveals it is a spritely 9 million years old

The Hayabusa-2 spacecraft bombed the asteroid Ryugu in April. Analysing the crater it left behind suggests…

Strange lines on Venus may be folded stacks of lava eroded by wind

Venus’s surface is covered in strange wiggling lines that may form when colossal stacks of lava…

Mysterious crater on Mars could be a good place to look for life

Could life on Mars have hidden from extreme weather in a cavern on the Pavonis Mons…