How would detecting methane help astronomers identify if exoplanets, or even exomoons, have life as we know it, or even as we ...

Faith Waterman, 20, died after inhaling the gas from the canister - but experts say the gas can be dangerous even taken from ...

China has reached a decisive milestone by achieving the first artificial photosynthesis in space aboard the Tiangong station.

Alabama is planning to carry out its fourth execution with nitrogen gas. Demetrius Terrence Frazier is scheduled to be ...