Forty light-years away, seven Earth-sized planets orbit around a dim red dwarf star in one of the most tightly packed ...

If aliens are watching Earth, they might be able to detect us from the radio signals we beam to Mars to control our rovers there. Astronomers have now listened in on the nearby TRAPPIST-1 system to ...

A seven-planet system some 40 light-years from Earth could be swimming in water, new research shows. In February 2017 scientists announced the discovery of several exoplanets orbiting the red dwarf ...

Efforts to observe the atmospheres of planets in the TRAPPIST-1 system are being stymied by rambunctious activity on the surface of the red dwarf star at its center, new findings from the James Webb ...

This artist's concept shows what the TRAPPIST-1 planetary system may look like. TRAPPIST-1 fascinates planetary scientists. Just 39 light-years from us exist seven planets orbiting a star. It’s not an ...

Astronomers discovered the TRAPPIST-1 system, a family of tightly packed planets swarming a red dwarf star, about eight years ago. Credit: Mark Garlick / Science Photo Library / Getty Images ...

New simulations examine whether the seven planets in the TRAPPIST-1 system could host moons, showing that only small, close-orbiting moons could remain stable over long periods ...

Just 40 light-years from Earth, the TRAPPIST-1 system of planets is home to the largest family of Earth-like worlds known to astronomers. At least seven planets are known to orbit within the ...

Frequent flares from the nearby star TRAPPIST-1 could offer new clues in the search for habitable planets beyond Earth. TRAPPIST-1 is an ultracool red dwarf, located about 40 light-years away in the ...

Astronomers have been keenly interested in the TRAPPIST-1 system ever since the Spitzer Space Telescope identified an incredible seven Earth-like exoplanets in orbit of the star. They might not be as ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. An artistic impression of Trappist-1 b shortly before it ...

Churning magnetic activity on the surface of TRAPPIST-1's red dwarf star is interfering with the JWST’s efforts to determine whether any of the orbiting planets are habitable. When you purchase ...