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Deep dives into the science of extraterrestrial life.

Could There Be Life on Europa?

Jupiter's icy moon hides a vast ocean beneath its frozen surface — and it might be teeming with microbial life.

Saturn's tiny moon shoots plumes of water into space, carrying hints of hydrothermal activity from its ocean floor.

With methane lakes and a thick atmosphere, Titan challenges our definition of what life needs to survive.

From ancient riverbeds to a controversial meteorite, Mars keeps teasing us with the possibility of past life.

How do scientists detect life on worlds they can never visit? The answer lies in light, chemistry, and a lot of patience.