News tagged with outer solar system

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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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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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Image: Janus from afar

Cassini's narrow angle camera captures Saturn's tiny irregular moon Janus surrounded by the vast, dark expanse of the outer solar system.

dateJan 13, 2014 in Space Exploration
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