Webb Zooms In on Building-Sized Asteroid Once Feared to Hit Earth – And It’s Stranger Than Expected

NASA’s James Webb Space Telescope took a close look at asteroid 2024 YR4, which was once thought to be on a potential collision course with Earth. Although that threat has since been ruled out, researchers used Webb’s cutting-edge instruments to measure the asteroid’s size and surface properties more precisely than ever before. Webb Observes a [...]