The gas giant TOI-2109b is more than five times as massive as Jupiter, and resides in a perilous orbit 870 light-years from our planet. As an “ultrahot Jupiter,” it completes a lap around its parent star in a mere 16 hours, the briefest orbit of any such planet known. It is baking its atmosphere to…
Astronomers using NASA’s Chandra X-ray Observatory have discovered a Jupiter-sized exoplanet that is being fried by the radiation from its parent star. The study determined that the star plan is getting extended so fast that it must be evaporating, losing more than 10 times the mass of Jupiter every billion years. This baby world is…
NASA’s Chandra X-ray Observatory, together with data from the Hubble Space Telescope, has revealed a “baby” exoplanet rapidly losing its atmosphere. The planet, named TOI 1227 b, orbits a faint red dwarf star and is only about 8 million years old. Powerful X-ray blasts from the star are stripping away the planet’s thick gas envelope….