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To recognize strange extraterrestrial life and solve biological mysteries on this planet, scientists are searching for an objective definition for life’s basic units.
Cosmic rays may have given right-handed genetic helixes an evolutionary edge at the beginning of life’s history.
Astronomers claim in a new paper that star motions should make it easy for civilizations to spread across the galaxy, but still we might find ourselves alone.
The astrochemist and winner of the 2018 Kavli Prize in Astrophysics has wondered about the cosmic origin of water while enjoying Noordwijk beach near her hometown of Leiden.
A living, breathing garden in Seattle serves as the perfect backdrop to an astrobiologist’s search for life on faraway planets.
Searching for signs of life on faraway planets, astrobiologists must decide which telltale biosignature gases to target.
Did the minerals on our planet arise in a predictable fashion, or did they result from chance events? The answers could eventually help scientists identify planets likely to harbor life.
All life on Earth is made of molecules that twist in the same direction. New research reveals that this may not always have been so.
Three “extremely large telescopes” poised to begin observations within a decade could help answer some of the universe’s oldest and best-kept secrets.