Astronomers shocked by how these giant exoplanets formed

Astronomers shocked by how these giant exoplanets formed JWST just found evidence that some “super-Jupiters” may have formed like planets, not failed stars.

• Date:
• February 11, 2026
• Source:
• University of California - San Diego
• Summary:
• A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed like Jupiter, by slowly building solid cores. That’s...