Alien Life

Alien Life

Could a Distant, Dark Body End Life on Earth?

Alien Life, Solar System

Did Comets Bring Life to Earth?

Alien Life

How Could We Recognize Life Elsewhere in the Cosmos?

Alien Life

Is Water Necessary for Life?

Alien Life, Exoplanets, Planets, Solar System

Is There Life on Mars, Titan, or Europa?

Alien Life

Are We Alone?

Alien Life, Solar System

What Will Happen to Life on Earth?

Alien Life, Solar System

Comets are teaching us how to make breathable oxygen in space

Alien Life, Exoplanets, Planets

Searching for aliens who already know we’re here

Alien Life, Exoplanets, Planets

Life or illusion? Avoiding “false positives” in the search for living worlds

Alien Life, Exoplanets, Planets

The aliens are silent because they are extinct

Alien Life

Web Extra: In search of Dyson spheres