Webb Space Telescope Reveals Rare Planet Pair That Shouldn’t Exist

JWST observations of the TOI-1130 system reveal a rare mini-Neptune with a heavy, volatile-rich atmosphere.

The planet likely formed in the cold outer disk beyond the frost line, not near its current close-in orbit.

Researchers think the mini-Neptune and its hot Jupiter companion migrated inward together.

The findings offer rare evidence that compact, unusual planet pairs can form far out and later move inward.