For more than a century, the idea that life might have arrived on our planet from elsewhere in the cosmos sat at the fringes ...

If aliens from space can die and mourn their dead then they likely invented gods to worship. Because they missed their loved ...

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to recognize biology may no longer be enough.

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But data from Nasa’s orbiters suggests there are karst caves – underground bunkers ...