Astronomers spot 1st moon-forming disk around an alien world

Astronomers have discovered the first disk surrounding a planet outside the solar system.

The impressive circumplanetary disk is about 500 times larger than Saturn’s rings and encircles a Jupiter-like planet dubbed PDS 70c. Scientists have seen plenty of disks surrounding distant stars, and moon-forming disks around planets like this have been suspected before, but this is the first time such a system has been definitively identified, according to the researchers.

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