Science and Exploration

Tess

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Two newly discovered super-puff exoplanets, TOI-791 b and TOI-791 c, with extremely low densities, observed by NASA's TESS mission in deep space.
Space & Astronomy

NASA TESS mission discovers two new super-puff planets

Two newly discovered planets, TOI-791 b and TOI-791 c, are larger than Jupiter yet so light they have densities comparable to cotton candy, according to NASA's TESS mission .

Jina Park·June 25, 2026