Science & Technology

‘Super-puff’ planets add a cotton candy flavor to the search for alien worlds

Readings from the Hubble Space Telescope have shed light on a bizarre class of alien planets that have the density of cotton candy.

Libby-Roberts is the lead author of a paper about the Hubble findings, “The Featureless Transmission Spectra of Two Super-Puff Planets,” due for publication in The Astrophysical Journal. 

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