NEW SO­LAR SYS­TEM FORMS FROM HUGE GAS CLOUD

Science Illustrated - - SPACE -

Gas cloud pro­duces mol­e­cules

The plasma of the uni­verse, con­denses in a cloud with a di­am­e­ter of hun­dreds of thou­sands times the dis­tance from Earth to the Sun. Grav­ity pro­duces mol­e­cules of par­tic­u­larly hy­dro­gen.

Gas cloud col­lapses into a star

Over 10-100,000 years, the cloud col­lapses un­der its own weight into a pro­to­star sur­rounded by a ro­tat­ing disc. The star ab­sorbs ma­te­rial and makes gases flow out from the poles.

Disc of dust and gas be­comes plan­ets

The pro­to­star and its ro­tat­ing disc con­tinue to at­tract mol­e­cules, un­til the gas cloud is com­pletely gone. Over 350 mil­lion years, dust and gas in the disc con­dense into plan­ets and other ob­jects.

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