Planetary Science
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Planetary ScienceTiny moon orbits dwarf planet
Hubble Space Telescope images from April 2015 show that the dwarf planet Makemake has a tiny moon.
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Planetary ScienceHubble telescope finds small moon orbiting dwarf planet Makemake
Hubble Space Telescope images from April 2015 show that the dwarf planet Makemake has a tiny moon.
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Planetary ScienceHow alien can a planet be and still support life?
Geoscientists imagine the unearthly mechanisms that could keep alien planets habitable.
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AstronomyNew telescopes will search for signs of life on distant planets
Researchers are coming up with creative ways to pick up biosignatures in far-away planetary atmospheres.
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AstronomyKey sugar needed for life could have formed in space
Sugar that forms backbone of cell machinery can form on icy grains blasted by ultraviolet light from young stars.
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AstronomyThe moon’s poles have no fixed address
Ancient deposits of lunar water ice mark where the moon’s poles used to be.
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AstronomyTwo chunks of the same comet buzzing Earth this week
Two comets, one a possible fragment of the other, will slip past Earth on March 21 and 22.
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Planetary ScienceComets carried noble gases to Earth
Asteroids might have delivered water to Earth, but comets could be responsible for noble gases and amino acids, a new study suggests.
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Planetary ScienceGet your Pluto trivia down cold
Eight months after visiting Pluto, the New Horizons spacecraft has delivered a wealth of details about the dwarf planet and its family of moons.
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Planetary ScienceWandering Jupiter could have swept inner solar system clean
If Jupiter formed close to the sun and then wandered out, that might explain why there are no planets interior to Mercury’s orbit.
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Planetary ScienceExoMars mission to search for signs of life on the Red Planet
The next mission to Mars will tally gases in the planet’s atmosphere and test technologies for a 2018 rover.
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Planetary ScienceMountains on Pluto are a winter wonderland of methane snow
On Pluto, methane snow blankets mountain tops.