Super-Earths, meet superpuffs, a lighter weight class of planet

Underweight, oversized planets formed in outskirts of star systems

a superpuff planet

BIG PERSONALITY  Superpuffs (one illustrated) are extra fluffy planets that formed far from their star and subsequently wandered in closer, a new study suggests.

NASA, ESA, G. Bacon/STScI

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Astronomy

From the Nature Index

Paid Content