Topic: Pluto (Dwarf Planet)
Top galleries, list articles, quizzes
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In Pictures: Space photos of the day: Deep Impacts
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In Pictures: Space photos of the day 08/16
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In Pictures: Space photos of the day 07/29
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In Pictures: Space photos of the day 07/20
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In Pictures: Space photos of the day 07/06
All Content
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How a humongous alien planet could explain how our solar system was born
The discovery of a colossal gas giant some 130 light-years from Earth could help explain the origins of our own solar system, say scientists.
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'Vulcan' and 'Cerberus' are favorite names for Pluto's moons
The online poll for naming Pluto's moons – P4 and P5 – is now over and the winning names are 'Vulcan' and 'Cerberus.' This result, however, doesn't guarantee that P4 and P5 will actually get these names.
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Discovery of smallest planet yet a 'milestone' in search for another Earth
The Kepler space telescope has found a planet smaller than Mercury orbiting a distant star. The discovery suggests Kepler has the precision to find a planet more like Earth.
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Do Pluto's moons pose risks for NASA spacecraft? (+video)
Scientists are planning a new route for NASA's New Horizons space probe as it approaches a potentially perilous path toward Pluto. They aim to chart a safe, but interesting course.
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Star hurtling through space near humongous black hole could prove Einstein's theory
The discovery offers scientists a unique chance within the decade to test Einstein's theory of relativity in an extreme environment.
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Is NASA focusing too much on Mars? (+video)
Even as the Curiosity Mars rover was still testing its equipment in preparation for its surface mission, NASA has unveiled plans for another unmanned mission to Mars. Is the agency playing favorites?
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Why we keep going back to Mars (+video)
The Mars Curiosity Rover scheduled to touch down on Aug. 5 represents mankind's 40th attempt to explore the Red Planet over the past 50 years. What is it about the Mars that keeps calling us back?
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Fifth moon discovery reminds us how little we know about Pluto (+video)
Orbiting at outskirts of the solar system some three billion miles from Earth, Pluto remains shrouded in mystery.
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Hubble spots fifth moon orbiting ex-planet Pluto
Scientists have announced the discovery of a fifth moon of Pluto. Dubbed P5 for now, it is the smallest moon yet detected orbiting the frigid dwarf planet.
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Pluto's fifth moon: five fascinating facts (+video)
Using data from the Hubble telescope, SETI scientists spotted a fifth moon orbiting the icy dwarf planet Pluto.
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Pluto now has at least five moons. Can we go back to calling it a planet?
Long considered a planet, Pluto was reclassified as a 'dwarf planet' in 2006 by the International Astronomical Union. Will the discovery of a fifth moon prompt astronomers to reconsider?
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Pluto's new moon could cause problems for space probe, says NASA (+video)
Pluto's newly discovered fifth moon could mean more debris surrounding the icy dwarf planet, which could pose a hazard for NASA's New Horizons spacecraft, which was launched in 2006 with the aim of mapping Pluto's surface.
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What should we name Pluto's new moon?
Scientists examining data from NASA's Hubble Space Telescope have spotted a fifth moon orbiting Pluto. The moon is currently labeled S/2012 (134340) 1, a monicker that could probably be improved.
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Hubble telescope spots fifth moon orbiting Pluto (+video)
Almost exactly a year after it spotted a fourth moon orbiting the icy dwarf planet, the Hubble Space Telescope has detected a fifth one.
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Mercury crater mysteriously resembles Mickey Mouse
NASA discovered a Mercury crater that resembles Mickey Mouse's head.
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Voyager 1 to become first man-made object to leave solar system (+video)
Launched in 1977, Voyager 1 is now poised to become the first craft to enter interstellar space.
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Florida scientists reduced to holding bake sale to fund NASA
In an effort to rescue planetary science projects amid budget cuts, scientists in Florida are holding bake sales and car washes to sway legislators to protect NASA's budget.
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School-bus-sized asteroid to buzz Earth Friday, nearer than moon
While the near-Earth asteroid won't hit Earth, it may offer seasoned amateur astronomers a great show — if they are in the right viewing location and have good equipment.
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Mars rover gets 'engine' upgrade: Curiosity fueled by nuclear power
The next Mars rover, Curiosity, is scheduled to launch Saturday. It's the first Mars rover to jettison solar panels for nuclear power, meaning it can go places and do things others couldn't.
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Where did life exist on Mars? NASA chooses landing site for Curiosity rover
Curiosity rover, formally known as the Mars Science Laboratory, will land at the foot of an 18,000-foot mountain in Gale crater, NASA announced Friday. The mount is expected to yield unparalleled information on where and when life might have existed on Mars.
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Pluto moon discovery hints at future surprises for NASA probe
Pluto moon: The tiny new moon — announced July 20 and called P4 for now — brings the number of known Pluto satellites to four.
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In a NASA first, NanoSail-D spacecraft to set sail on the sunlight
NASA's NanoSail-D is expected to test a type of propulsion that taps the momentum of photons in sunlight. Advocates say solar sails provide the best way toward interstellar travel.
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"How I Killed Pluto and Why It Had It Coming" made Mike Brown a lot of enemies
Cal Tech astronomer and author Mike Brown helped to demote Pluto from planethood – and got a lot of hate mail as a result.
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Should Pluto be restored as a planet? Experts weigh in.
New calculations indicate that Pluto might be the largest object in the outer solar system. Does it now deserve to be called a planet again?
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Moon's got water, yeah. But it's got other resource goodies, too.
Besides water, frigid craters at the moon's poles hold other resources that astronauts might be able to use to sustain lunar bases. There's even a bit of silver.
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