Electrons released when cosmic rays strike water-ice can provide energy for microbes and facilitate the formation of complex ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

A major new study lays out plans for crewed missions to Mars, with the search for extraterrestrial life being a top priority ...

Scientists will gather today to debate where NASA should next land on Mars, as the American space agency prepares a new mission in its search for life on the Red Planet. The debate comes as NASA is ...

One researcher hypothesizes that experiments carried out by NASA's Viking landers in 1976 could have inadvertently killed microbes living in Martian rocks. Other experts are skeptical. When you ...

NASA is hoping to answer questions about alien life by sending humans to Mars in the 2030s for the very first time, but it ...