The mystery arose more than 20 years ago, when the Hubble Space Telescope spotted the universe's oldest known planet, which formed earlier in the universe's history than scientists thought was ...
Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy material, the ingredients of planets," according to NASA's Goddard Space ...
16, 2024 Why it's so special: This James Webb Space Telescope (JWST) image has helped astronomers untangle a long-standing mystery about how planets form. The mystery arose more than 20 years ago, ...