NASA's Hubble Watches How the Giant Exoplanet PDS 70b Grows

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From: NASA.gov/Feature/Goddard
Apr 29, 2021

Hubble Watches How a Giant Planet Grows

NASA’s Hubble Space Telescope is giving astronomers a rare look at a Jupiter-sized, still-forming planet that is feeding off material surrounding a young star.

“We just don’t know very much about how giant planets grow,” said Brendan Bowler of the University of Texas at Austin. “This planetary system gives us the first opportunity to witness material falling onto a planet. Our results open up a new area for this research.” ...

The youthful PDS 70 system is filled with a primordial gas-and-dust disk that provides fuel to feed the growth of planets throughout the entire system. The planet PDS 70b is encircled by its own gas-and-dust disk that’s siphoning material from the vastly larger circumstellar disk. The researchers hypothesize that magnetic field lines extend from its circumplanetary disk down to the exoplanet’s atmosphere and are funneling material onto the planet’s surface. ...

Read & See more at: https://www.nasa.gov/feature/goddard/2021/hubble-watches-how-a-giant-planet-grows
 

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