When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, ...

Saturn's icy moon Enceladus would theoretically be able to host some forms of microbial life, according to a scientific study ...

NASA’s announcement came in the wake of a $500 million hike in budget for 2015, to $18.5 billion. The space agency will now plan out the robotic mission, to be launched in the next decade. NASA chief ...

Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b ...

Life in helium atmospheres on exoplanets? When searching for possible signs of alien life on exoplanets, scientists tend to focus on atmospheres that might be earthlike. That is, atmospheres dominated ...

On Aug. 15, 1977, astronomers using Ohio State University's Big Ear radio telescope detected the famous "Wow!" signal, which remains unexplained to this day. Astronomers may have already scanned ...

Science fiction suggests that life on other planets, if it exists, is likely far more advanced than life on Earth. A recent study suggests otherwise. This new study, led by Chris Doughty, a professor ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

Are we alone in the universe? Consider mysterious ”extraterrestrial” radio signals. Unexplained gases on other planets. Things mistaken for UFOs. In the search for alien life, humans have been fooled ...