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Four newly discovered planets located 130 light-years from Earth are in their 'teenage' years and could provide scientists with valuable information about Earth's early years.
TOI 2076b, TOI 2076c, TOI 2076d, and TOI 1807b are exoplanets orbiting the stars TOI 2076 and TOI 1807.
According to the study's principal author, Christina Hedges, the newly discovered planets are larger than Earth, ranging between two and four times the size of our planet. They are still in the 'transitional' phase of their lifecycles.
"The planets in both systems are in a transitional, or teenage, phase of their life cycle," Hedges, an astronomer at the Bay Area Environmental Research Institute and NASA's Ames Research Center, said in a statement.
AustraliaGeorge-zhouTrevor-davidAlex-hughesLoughborough-universityAmes-research-centerBay-area-environmental-research-instituteExoplanet-survey-satelliteUniversity-of-southern-queenslandChristina-hedgesResearch-centerNewly-discoveredHow shrinking planets might explain missing planets
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May 27, 2021
Artist’s concept of Gliese 1214b, a mini-Neptune and possible shrinking planet. Worlds like this may sometimes lose their thick atmospheres and literally decrease in size, becoming super-Earths. Shrinking planets might help explain a mystery gap in exoplanet sizes. Image via NASA/ ESA/ G. Bacon (STScI)/ L. Kreidberg & J. Bean (U. Chicago)/ H. Knutson (Caltech)/ AAS Nova.
Can planets shrink? New research from the Flatiron Institute in New York City suggests they can. Shrinking planets might be the solution to the mystery gap in the sizes of exoplanets discovered so far. Planets between 1.5 and two times Earth’s radius are mostly missing. The idea is that mini-Neptunes – smaller than Neptune but larger than super-Earths – might lose their thick atmospheres and thereby decrease in size.
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