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Astronomers discover five new Neptune trojans

(Phys.org)—An international team of astronomers led by Hsing-Wen Lin of the National Central University in Taiwan has detected five new so-called "Neptune trojans" – minor bodies sharing the same orbit as the planet Neptune. ...

dateSep 20, 2016 in Astronomy report
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Migrating exoplanets

Many known exoplanets orbit close to their host star, within one-tenth of an astronomical unit (one AU is the average distance of the Earth from the Sun). Since their orbital periods are therefore very short and their gravitational ...

dateSep 19, 2016 in Astronomy
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Origin of minor planets' rings revealed

A team of researchers has clarified the origin of the rings recently discovered around two minor planets known as centaurs, and their results suggest the existence of rings around other centaurs. These findings were published ...

dateSep 16, 2016 in Astronomy
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Hubble images three debris disks around G-type stars

A team using the Hubble Space Telescope has imaged circumstellar disk structures (CDSs) around three stars similar to the sun. The stars are all G-type solar analogs, and the disks themselves share similarities with our Solar ...

dateSep 14, 2016 in Astronomy
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Earth's carbon points to planetary smashup

Research by Rice University Earth scientists suggests that virtually all of Earth's life-giving carbon could have come from a collision about 4.4 billion years ago between Earth and an embryonic planet similar to Mercury.

dateSep 05, 2016 in Earth Sciences
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