LifeMeteorites reveal extended deep-freeze on Mars The first detailed study of the Red Planet's thermal history reveals a forbidding, frozen world where life may never have taken hold ¿ìè¶ÌÊÓÆµ
LifeEarth microbes may survive on Mars Bugs hitching to Mars on spacecraft could survive in some circumstances, a new study suggests, providing a warning to missions searching for life there ¿ìè¶ÌÊÓÆµ