If an astronaut dies in space, could their body eventually go on to spread microbes to other planets ?
New research has emphasized the remarkable persistence of life even in the cold vacuum of space.
A controversial new claim suggests that evidence of 'directed panspermia' has been found by scientists.
Researchers have discovered that organic material may be hitching a ride in interstellar dust particles.
The asteroid that wiped out the dinosaurs may have also catapulted life to Mars and elsewhere.
Scientists are more convinced than ever that they've found evidence of alien life in the stratosphere.
Microscopic algae found on the side of a research balloon is being hailed as evidence of alien life.
New evidence suggests that life on our planet may have arrived here after first developing on Mars.
Taking the idea of panspermia one step further - could dead alien microbes have spread life to the Earth ?