Astronomers are closing in on what looks like a rare prize: a world almost the size of Earth, circling a Sun-like star at a distance that gives it a familiar, year-long orbit. The candidate, known as ...
Astronomers may have discovered a new Earth-sized exoplanet orbiting a Sunlike star just 146 light-years away. Before you pack a suitcase, however, there’s a catch: even if the find is confirmed, the ...