Webb telescope finds hot young star Vega is actually quite lonely

A little over a decade ago, astronomers found a large gap between two belts circling Vega, hinting that the nearby star probably hosts several exoplanets. Then in 2021, other researchers saw what they believed was perhaps a signal of a Neptune or Jupiter-like gas giant orbiting extremely close to the star. Surely, they thought, when the ultra-sensitive James Webb Space Telescope launches into space, they'll finally get the definitive proof of a planet. But after pointing Webb at the target,