Public domain
Abstract Concept of TRAPPIST-1 System
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This artist's concept appeared on the Feb. 23, 2017 cover of the journal Nature announcing that the TRAPPIST-1 star, an ultra-cool dwarf, has seven Earth-size planets orbiting it. Any of these planets could have liquid water on them. Planets that are farther from the star are more likely to have significant amounts of ice, especially on the side that faces away from the star.
NASA Image and Video Library’s own descriptionCredit lineAbstract Concept of TRAPPIST-1 System. NASA/JPL, 2017-02-22. Public domain. ID: PIA21421.
