Planets
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Planets
Storm on Saturn
A spacecraft photographed the most powerful storm ever seen on Saturn.
By Emily Sohn -
Planets
Sizing up Pluto’s moon
Pluto's rocky moon Charon appears to lack an atmosphere.
By Emily Sohn -
Planets
Evidence of a Wet Mars
An orbiter provides new details about when and where liquid water existed on Mars.
By Emily Sohn -
Planets
Pluto’s New Moons
Astronomers have spotted two objects that may be previously unknown moons of Pluto.
By Emily Sohn -
Planets
Saturn’s Spongy Moon
Close-up views of Saturn's moon Hyperion reveal a strangely cratered surface that looks spongy.
By Emily Sohn -
Planets
An Icy Blob of Fluff
Firing a projectile into a comet has exposed an icy dirtball.
By Emily Sohn -
Planets
A Smashing Display
A space probe slams into a comet and sends up a mighty cloud of dust.
By Emily Sohn -
Planets
Cousin Earth
Astronomers have found a solid, Earthlike planet just 15 light-years beyond the solar system.
By Emily Sohn -
Planets
Chaos Among the Planets
The screwball travels of four giant planets may have reshaped the early solar system.
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Planets
Solving a Sedna Mystery
Astronomers are learning more about the most-remote object known in the solar system.
By Emily Sohn -
Planets
Sounds of Titan
A space probe touches down on an alien, but eerily familiar world and samples its music.
By Emily Sohn -
Planets
Unveiling Titan
A space probe that landed on Saturn's frigid moon Titan found a landscape that looks a lot like Earth.
By Emily Sohn