JWST
Astronomers using NASA’s James Webb Space Telescope have studied the atmosphere of TOI-199b, a rare Saturn-sized planet with temperatures around 175 degrees Fahrenheit. The findings mark the first detailed look at a temperate giant exoplanet.
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Astronomers have identified a rare planetary system 190 light-years from Earth featuring a hot Jupiter sharing its orbit with a mini-Neptune closer to the star. This configuration was once considered nearly impossible. New observations from the James Webb Space Telescope provide fresh insights into how the planets formed.
Observations from the James Webb Space Telescope suggest that the universe's earliest stars may have been supermassive dark stars powered by dark matter annihilation rather than nuclear fusion. A new study identifies four distant objects matching this description, potentially explaining bright early galaxies and supermassive black holes. These findings build on theories proposed over a decade ago.