The three planets in the conventional habitable zone face the threat of harmful particles and gravitational tugging of the other planets

The three planets in the conventional habitable zone face the threat of harmful particles and gravitational tugging of the other planets
Three Earth-sized exoplanets orbiting TRAPPIST-1 lack hydrogen in their atmospheres, which could be a good sign for its habitability
By constraining the age of the seven-planet system, we can better our understanding of its habitability
The orbital period of the TRAPPIST-1 system’s most remote planet, TRAPPIST-1h, has been uncovered
Hydrogen pouring from volcanic sources on planets throughout the universe could improve chances of locating life in the cosmos