A new look at TRAPPIST-1e, an Earth-sized, habitable-zone exoplanet

Of the seven Earth-sized worlds orbiting the red dwarf star TRAPPIST-1, one planet in particular has attracted the attention of scientists. This planet orbits the star within the “Goldilocks zone”—a distance where water on its surface is theoretically possible, but only if the planet has an atmosphere. And where there is water, there might be life.