US Researchers Found a Strange Cluster of Pluto-Size Protoplanets

December 15, 2014 12:45 PM

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On December 11, US astronomers reported that they were able to detect a cluster of Pluto-size protoplanets orbiting HD 107146, a star very similar to our Sun, located 90 light-years away from Earth.

For their observations, scientists used a very precise telescope called Atacama Large Millimeter/submillimeter Array (ALMA) located in the Atacama Desert, Chile. The ALMA telescope lies on a platform 3.1 miles above sea level and it has about 66 antennas that use (sub)millimeter wave-lengths to dete...

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