Thursday, July 23

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Science A Giant Object Orbiting a Failed Star Blurs the Line Between Moon and Planet Science Coral Reef Written Off as Dead Is Found Thriving Off West Africa World A Death in Police Custody Reignites Italy's Debate Over Accountability World US and Russian Top Diplomats Meet on Ukraine, but Talks Stay Stuck World Five Soldiers Killed in Attack on Checkpoint in Southern Thailand Sports Arsenal's Saliba Out for an Extended Period With a World Cup Back Injury Science Orcas Filmed Smashing Fish, Perhaps Just for the Fun of It World Guyana Ferry Toll Feared Near 100 as Families Demand Answers Science A Giant Object Orbiting a Failed Star Blurs the Line Between Moon and Planet Science Coral Reef Written Off as Dead Is Found Thriving Off West Africa World A Death in Police Custody Reignites Italy's Debate Over Accountability World US and Russian Top Diplomats Meet on Ukraine, but Talks Stay Stuck World Five Soldiers Killed in Attack on Checkpoint in Southern Thailand Sports Arsenal's Saliba Out for an Extended Period With a World Cup Back Injury Science Orcas Filmed Smashing Fish, Perhaps Just for the Fun of It World Guyana Ferry Toll Feared Near 100 as Families Demand Answers

Topic: brown-dwarf

The moon setting over the European Southern Observatory's Very Large Telescope in Chile

Thursday, 7/23, 10:33 AM

A Giant Object Orbiting a Failed Star Blurs the Line Between Moon and Planet

Astronomers have found a body nearly as massive as Jupiter circling a 'failed star' 73 light-years away.
It is far too big to be an ordinary moon, but it orbits an object that is not quite a star, leaving it awkwardly between our categories and prompting a rethink of where a moon ends and a planet begins.

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