Planetary Science
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Planetary ScienceYear in Review: Methane shortage on Mars
A trace of the gas is not enough to be a sign of life.
By Erin Wayman -
AstronomyExoplanet dangerously close to demise
Kepler-91b could be on the brink of death — at least on astronomical time scales.
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Planetary ScienceExoplanet mass revealed in light
A new method could help identify habitable planets.
By Andrew Grant -
Planetary ScienceSinkholes, tectonics may have shaped Titan’s lakes and seas
A map of Saturn’s largest moon reveals clues about the object's landscape.
By Meghan Rosen -
Planetary ScienceEuropa vents water, Hubble data suggest
Plumes from ice-covered oceans would increase likelihood of life-friendly conditions on one moon of Jupiter.
By Andrew Grant -
Planetary ScienceMars was habitable longer, more recently than thought
Warmer, wetter conditions lasted until 3.5 billion years ago on the Red Planet.
By Andrew Grant -
AstronomySaturn’s six-sided cloud pattern gets a close look
New images show particles in the planet’s hexagonally shaped jet stream.
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Planetary ScienceMoon wears dusty cloak
Old data from Apollo missions stir up debate about speed of lunar dust accumulation.
By Meghan Rosen -
Planetary ScienceChina’s first moon-landing mission blasts off
If successful, the Chang’e 3 lunar lander and Yutu rover will be the first spacecraft to land on the moon in 37 years.
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Planetary ScienceTurbulent ocean could explain Europa’s chaotic ice
New computer simulations show turbulent global ocean currents that distribute heat unevenly and could explain the formation of the chaotic ice patterns at the moon’s lower latitudes.
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AstronomyDust cloud, tail could explain exoplanet’s odd light pattern
KIC 12557548 b may be ejecting dust from its surface, creating a cometlike tail behind it and an opaque envelope of material around it.
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Planetary ScienceJupiter’s Great Red Spot explained
A computer simulation is the first to explain how Jupiter’s Great Red Spot has survived for the nearly 200 years humans have observed it.