Life needs nutrients like nitrogen and phosphorus. But without the right balance of oxygen, these elements get locked away in planets’ cores.

For decades, scientists have debated whether Mars once had a large ocean. Images from orbiters have shown valleys, channels ...

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

Scientists are trying to understand how complex life emerged on Earth about 2 billion years ago. Our microbial ancestors could be the key.

A study by scientists from Johns Hopkins University has shown that microbes trapped in asteroid debris can migrate to other planets, including Earth, and survive. This was reported on March 3 by the ...

A new study shows how simulated Mars dust affects tardigrades, offering insight into space farming and contamination risks.

The idea that life can spread from world to world dates as far back as ancient Greece and the philosopher Anaxagoras.

Antarctica is covered by a miles-thick ice sheet, but was that always the case? And when was the coldest continent ice-free?

We all have a concept of reality. We know what is “fact” and what isn’t. However, the truth of the matter is that the ...

Asteroid impacts may catapult life from one planet to another, as new research claims that hardy bacteria can survive the ...

Using the Transiting Exoplanet Survey Satellite (TESS) and High Accuracy Radial velocity Planet Searcher for the Northern ...