With water, hot vents, and tasty hydrogen, Enceladus has everything methanogen microbes could ever want. But is anybody home?
Any microbes may have to forego membranes, or live underground.
Something powerful split open the icy moon’s south pole.
Rain with no water. Air with no oxygen. Hills with no soil.
Scientists may have an explanation for the absurd abundance.
Saturn's moon is shockingly Earth-like, so NASA is sending a drone.
How the gas giant got its rings.
Saturn's northern pole is home to a six-sided feature that mystifies scientists.
From the Popular Science archives.
Mars is at its closest and clearest right now. You know you want to look at it.
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