The (currently entirely theoretical) study of potential or possible life from elsewhere in the...

Astrobiology is a new interdisciplinary science that studies the origin, evolution, distribution, and destiny of life in the cosmos. Other terms that have been used to describe the search for life beyond Earth include exobiology, exopaleontology, and...

Astrobiology (from Greek: ἀστρο, astro, "constellation"; βίος, bios, "life"; and λόγος, logos, "knowledge") is the interdisciplinary study of life in space, combining aspects of astronomy, biology and geology.[2] It is focused primarily...

Oxygen, key to life on Earth today, began to appear on the planet millions of years earlier than scientists had thought, new research indicates.An analysis of a deep rock core from Australia indicates the presence of at least some oxygen 50 million to 100 million...