NASA’s TESS Mission Reveals the “Puffiest” Planets Ever Found
This illustration depicts the Sun-like star TOI-791 and two giant planets that NASA’s TESS space telescope discovered in its orbit. These planets, designated TOI-791 b and TOI-791 c, are roughly the size of Jupiter but a tiny fraction of its mass, meaning they have an extraordinarily low density. NASA / Daniel Rutter Data from NASA’s TESS (Transiting Exoplanet Survey Satellite) mission has revealed two new “super-puff” planets, giant worlds so light that their density is comparable to cotton can
The science section covers breakthroughs in medicine, physics, biology, and technology. We surface discoveries that expand what humanity can do, from new treatments reaching clinical trials to engineering feats that seemed impossible a decade ago. Every link goes to the original publisher so you can read the full study or press release yourself.
BY THE OPTIMIST DAILY EDITORIAL TEAM You’ve probably spent more time than you’d like to admit wondering if something is …
BY THE OPTIMIST DAILY EDITORIAL TEAM Two lawyers filed a court case. Thousands signed a petition. Pakistan just agreed t…
Earth Observatory Science Earth Observatory The Battle for Sullivan’s… Earth Earth Observatory Image of the Day EO Explo…
The Expedition 73 crew attends a debrief and awards ceremony at Space Center Houston’s IMAX theater on June 16, 2026. NA…