The curious minds at What If explore the possibilities of what would happen if we found alien life on K2-18 b.

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

The European-led LIFE mission aims to use spacecraft in formation to look for biosignatures.

The main focus of the trip is to study the effects of long-term spaceflight on the body, but the test is also a side mission.