ExploreAstro at Caltech IPAC

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Sharing out-of-this-world astrophysics with our on-this-world audience. Brought to you by @caltechipac.bsky.social.

NASA’s SPHEREx space telescope has completed its first infrared map of the entire sky! This is the most comprehensive spectral view of the infrared sky, with 102 colors (or wavelengths) of infrared light from observations made between May and December 2025. 🧪 ⚛️ 🔭

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This giant planet orbiting a tiny star is challenging our current theories 🧩🤔 Planet TOI-6894b is a low-density gas giant with a radius a bit larger than Saturn. The host star is the lowest mass star to have a transiting giant planet discovered to date. Read more: ipac.caltech.edu/news/discove...

Discovery of giant planet orbiting tiny star challenges theories on planet formation

The University of Warwick and UCL astronomers, as part of a global collaboration including partners in Chile, USA and Europe, have discovered the smallest known star to host a transiting giant planet,...

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