Super-puffs are extrasolar planets with masses only a few times larger than Earth’s, radii larger than Neptune, and very low densities.
First discovered by NASA’s Kepler space telescope, these planets are relatively rare in our Milky Way Galaxy — fewer than 15 have been discovered so far.
“Kepler-51’s trio take planetary puffiness to new levels,” said Dr. Zachory Berta-Thompson, an astronomer in the Department of Astrophysical and Planetary Sciences at the University of Colorado, Boulder.
“Their discovery was straight-up contrary to what we teach in undergraduate classrooms.”
https://news.google.com/__i/rss/rd/articles/CBMiWWh0dHBzOi8vaG90YWlyLmNvbS9oZWFkbGluZXMvYXJjaGl2ZXMvMjAxOS8xMi9rZXBsZXItNTEtaG9tZS10aHJlZS1zdXBlci1wdWZmLWV4b3BsYW5ldHMv0gEA?oc=5
2019-12-22 13:35:00Z
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