Rockets armed with talcum powder could stop deadly space junk

Thousands of dead satellites and chunks of debris in orbit are a threat to active satellites,…

We may have spotted a parallel universe going backwards in time

Strange particles observed by an experiment in Antarctica could be evidence of an alternative reality where…

An asteroid strike may have popped the surface of Mars

An unusually round and symmetrical deposit on Mars may be the result of an impact that…

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…