mercredi 8 juillet 2015

Worldnews Rules



Astronomers have discovered a very rare system of five connected stars. The quintuplet consists of a pair of closely linked stars - binaries - one of which has a lone companion; it is the first known system of its kind. (bbc.com) Unless maybe it has a very wide orbit?

from Pocket http://ift.tt/1HNh1UZ

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