Astronomers have identified the least dense double giants in space, which have a density lower than that of cotton candy. The two newly discovered exoplanets TOI-791b and TOI-791c have a density of 0. 038 grams per cubic centimetre and 0. 047 grams per cubic centimetre, respectively. The two planets. ..
Scientists found ‘super-puff’ planets 1,110 light-years away
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