LifeSpongy minerals could explain why Mars gives off methane burps Zeolites – volcanic minerals that easily trap and release gases – could be responsible for the burps of methane that occasionally come from the Red Planet ¿ìè¶ÌÊÓÆµ
LifeThe Visit: What aliens would really mean for us as humans We're prepared for visiting aliens, but not for the feelings they could prompt, says Michael Madsen, the film-maker behind The Visit: An Alien EncounterCultureLab