Scientists say they've found the best evidence yet for panspermia - the theory that life on Earth developed from microorganisms brought here from other planets on asteroids, meteors and the like.
NASA scientists are zapping organics with lasers in an attempt to discover how life arose on Earth.
New research indicates that life might be able to survive on some of the odder exoplanets discovered so far - from scorching hot worlds with molten surfaces to freezing balls of ice.
One of the most encouraging signs for those searching for evidence of early water on Mars has been the existence of clays. But a French-US team has now rained on that particular parade.
A Japanese deep sea drilling vessel, Chikyu, yesterday set a new world record, by drilling down over 2,111 meters below the seafloor to collect rock samples.
The total mass of all life on Earth is about one third less than thought, a new analysis has indicated.
If there's any evidence of ancient life on Mars, it's likely to be found near the surface, new research suggests - dramatically upping the chances that it'll be discovered by the Curiosity rover, set to land next month.
An experiment carried out on the Internatonal Space Station has shown that lichen can survive in outer space - lending support to the 'panspermia' theory that life arrived here from elsewhere.
There's vastly more water in Mars's mantle than previously thought - as much as on Earth, in fact - dramatically raising the chances that the planet might once have sustained life.
Scientists have discovered new types of organism living in one of the most inhospitable soils in the world - raising hopes that something similar could survive on Mars.
Disappointingly, scientists say they've been able to establish where the methane on Mars comes from - and it's not from living organisms.
New, NASA-funded research indicates that very large molecules containing carbon - a key ingredient for the building blocks of life - have originated on Mars.
A Danish physicist has concluded that the explosion of nearby supernovae has strongly influenced the development of life on Earth.
The prospect of artificial life has just come one step closer, with the discovery that a synthetic version of DNA and RNA can evolve like the real thing.
The best place to look for life on Mars and other planets could be the impact craters of asteroids.
Scientists believe they've found evidence for life on Mars - in data collected 36 years ago.
ESA’s Mars Express has discovered a series of 'pit-chains' in the Tharsis region of Mars that could, says ESA, be tempting targets in the search for microbial life.
US scientists have come up with new evidence that the key ingredients for life were brought to our planet by comets, billions of years ago.
A bombardment of cosmic rays on the moon's surface could be creating complex carbon chains similar to those that form the foundations of biological life.
Observations from NASA's Cassini spacecraft have revealed an oxygen atmosphere around Saturn's moon Dione.