News tagged with outer planets

The gas (and ice) giant Neptune

Neptune is the eight planet from our Sun, one of the four gas giants, and one of the four outer planets in our Solar System. Since the "demotion" of Pluto by the IAU to the status of a dwarf planet – and/or Plutoid and ...

dateSep 14, 2015 in Space Exploration
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Measuring the mass of a Mars-size exoplanet

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based on its gravity was ...

dateJun 18, 2015 in Astronomy
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Wandering Jupiter accounts for our unusual solar system

Long before Mercury, Venus, Earth, and Mars formed, it seems that the inner solar system may have harbored a number of super-Earths—planets larger than Earth but smaller than Neptune. If so, those planets are long gone—broken ...

dateMar 23, 2015 in Astronomy
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Swarm of microprobes to head for Jupiter

A swarm of tiny probes each with a different sensor could be fired into the clouds of Jupiter and grab data as they fall before burning up in the gas giant planet's atmosphere. The probes would last an estimated 15 minutes ...

dateJan 26, 2015 in Astronomy
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NASA's upcoming Year of the Dwarf Planet

Together, the space probes Dawn and New Horizons have been in flight for a collective 17 years. One remained close to home and the other departed to parts of the Solar System of which little is known. They now share a common ...

dateDec 30, 2014 in Space Exploration
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The origins of local planetary orbits

A plutino is an asteroid-sized body that orbits the Sun in a 2:3 resonance with Neptune. They are named after Pluto, which also orbits the Sun twice for every three orbits of Neptune. It is thought that Pluto and the other ...

dateOct 01, 2014 in Astronomy
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Satellite cooling system breakthrough

Scientists and engineers at the Lockheed Martin Advanced Technology Center (ATC) have developed the lightest satellite cryocooler, (cooling system) ever built. The breakthrough is seen as a game-changer in the design of affordable, ...

dateDec 05, 2013 in Space Exploration
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