Planetary Science
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AstronomyYoung, hot exoplanet takes title for longest year
Newly discovered exoplanet sits a whopping 2,000 times farther from its star than Earth does from the sun.
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Planetary ScienceTitan’s haze gives clues to clouds on exoplanets
Titan’s hazy atmosphere may help astronomers better understand what’s going on in the clouds of exoplanets.
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Planetary ScienceRosetta spacecraft’s comet develops dusty envelope
Comet 67P/Churyumov-Gerasimenko, the target of ESA’s Rosetta mission, has developed a dust coma.
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Planetary ScienceThe ice of a distant moon
Jupiter’s moon Europa hides a liquid ocean, and conceivably life, under kilometers of ice. The challenge for engineers is how to penetrate that frozen barrier with technology that can be launched into space and operated remotely.
By Meghan Rosen -
Planetary ScienceMountains on Saturn moon may have come from space
A mountainous ridge around the equator of Iapetus, one of Saturn’s moons, may have formed from cosmic debris.
By Meghan Rosen -
Planetary ScienceRIP LADEE: 9/6/2013 – 4/18/2014
NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) mission ended April 18.
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Planetary ScienceSaturn may be getting a new moon
An icy object within Saturn's rings may be a new moon in the making.
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AstronomyEarly Mars couldn’t hold liquid water long
Small rocks hit Mars 3.6 billion years ago, suggesting an early atmosphere too thin for liquid water to hang around very long.
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AstronomyNeutrinos from space rain down from all directions
Using Earth as a filter, scientists detect thousands of neutrinos from beyond the solar system.
By Andrew Grant -
Planetary ScienceMercury’s surface once exploded in volcanoes
Newly released images show ancient vents and ash scattered within craters on Mercury's surface.
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Planetary ScienceSubsurface sea hides below ice of Saturn moon
Astronomers add to evidence for a subsurface ocean on Enceladus using subtle variations in the moon’s gravity.
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Planetary ScienceMoon gets younger age estimate
The moon may have formed about 95 million years after the birth of the solar system, up to 70 million years later than some scientists previously predicted.