Life took root more than four billion years ago on our nascent Earth, a wetter and harsher place than now, bathed in sizzling ultraviolet rays.
Some meteorites supply molecules that can be used as building blocks to make certain kinds of larger molecules that are critical for life.
Using the powerful eye of NASA's Hubble Space Telescope, two teams of scientists have found faint signatures of water in the atmospheres of five distant planets.
Scientists at the South Pole have detected a collection of neutrinos from outer space that could help explain the origins of the universe.
A rare, recently discovered microbe that survives on very little to eat has been found in two places on Earth: spacecraft clean rooms in Florida and South America.
Planets rich in carbon, including so-called diamond planets, may lack oceans, according to NASA-funded theoretical research.
A European trio of researchers has discovered a "circumstellar disk" – a corpse, in other words – of a minor planet that was about 26 per cent water.
A team of British scientists is convinced it has found proof of alien life, after it harvested strange particles from the edge of space.
A group of international scientists including a Lawrence Livermore National Laboratory researcher have confirmed that life really could have come from out of this world.
In a new finding scientists believe the collisions of comet in our solar system increases the chance of life across it.
Researchers have found signs of life in mud pulled from the bottom of an ice-covered lake in Antarctica.
What if we got to land on Europa's surface and conduct something along the lines of a more in-depth interview?
How did life on Earth get started?
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