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Astronomers discover 'mega-Earth' GJ 523b, 23 times Earth's mass but defies formation models

Wisconsin Center for Origins Research catalogs first exoplanet discovery: GJ 523b

1 Aug 17, 12:40 PM · 3d ago · 4 press · 2 sources · development 1 of 2

Astronomers with the Wisconsin Center for Origins Research discovered GJ 523b, a rocky mega-Earth nearly 170 million years old, measuring 2.5 times Earth's size.

Wisconsin Center for Origins Research catalogs first exoplanet discovery: GJ 523b
Space.com

“It's nearly 170 million years old. It's more than 2.5 times the size of Earth. And it's the first exoplanet discovered and cataloged by researchers with the Wisconsin Center for Origins Research (WiCOR).”

Phys.org, Science publication · rss ↗

Max Kroft Lead author of the studyWisconsin Center for Origins Research (WiCOR) Discovering research institutionUniversity of Wisconsin–Madison Research institutionNASA's Transiting Exoplanet Survey Satellite (TESS) Space telescope instrument

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2Study details GJ 523b's anomalous density…
Aug 18Aug 19yesterdaynow · 5:05 AM ET

What was reported 1 claim about this development

  1. 2 outlets Mega-Earth GJ 523b is 23 times as massive as our planet—but only 2.5 times as wide

    first by Phys.org, 3d ago · also Google News · Science

    1 more headline

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