The Terrestrial Worlds of Other Stars

Rocky worlds that are similar in temperature and composition to the Earth have recently been discovered to orbit nearby stars. The big question is: Are these truly Earth-like orbs, or are they airless worlds inhospitable to life? Using the powerful NASA James Webb Space Telescope, astronomers are now getting their first sniffs of the conditions on some of these planets. In the not-too-distant future, the Habitable Worlds Observatory should definitively answer the grand question of whether or not we are alone in the Universe.