We have completed maintenance on DiscoverMagazine.com and action may be required on your account. Learn More

TRAPPIST-1 and the Seven Exoplanets

Water could exist on all of them.

By Lacy Schley
May 9, 2017 5:00 AMNov 21, 2019 6:54 PM
Trappist-1 Exoplanets - NASA
(Credit: NASA/JPL-Caltech)


Sign up for our email newsletter for the latest science news

NASA’s news of the TRAPPIST-1 solar system generated quite the buzz recently. The agency announced that the system’s star — an ultra-cool dwarf just a bit bigger than Jupiter — has a collection of seven Earth-sized planets circling it. Researchers confirmed two of these planets in 2016 but upped the tally to seven after they gathered more data. Three of the worlds lie in the star’s habitable zone, where there is the greatest likelihood of having liquid water and maybe even life. But researchers say water may exist on all seven planets, which, at the time of this writing, are still unnamed.

1 free article left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

1 free articleSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!


Already a subscriber?

Register or Log In

More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Our List

Sign up for our weekly science updates.

To The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Copyright © 2024 Kalmbach Media Co.