Water found on Neptune-sized world

HAT-P-11b is smallest exoplanet known to host the life-friendly molecule

HAT-P-11b exoplanet illustration

WATER, WATER EVERYWHERE  Roughly the size of Neptune, the planet HAT-P-11b is the smallest known planet to have water. The orange glow of the planet’s sun (upper right in illustration) might lend a magenta tinge to the planet’s atmosphere.

David A. Aguilar/CfA

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