Observations from NASA’s James Webb Space Telescope have provided a surprising twist in the narrative surrounding what is believed to be the first star observed in the act of swallowing a planet. The new findings suggest that the star actually did not swell to envelop a planet as previously hypothesized. Instead, Webb’s observations show the […]
Category: Exoplanets
Discovery Alert: Four Little Planets, One Big Step
The Discovery Four rocky planets much smaller than Earth orbit Barnard’s Star, the next closest to ours after the three-star Alpha Centauri system. Barnard’s is the nearest single star. Key Facts Barnard’s Star, six light-years away, is notorious among astronomers for a history of false planet detections. But with the help of high-precision technology, the […]
NASA’s Webb Images Young, Giant Exoplanets, Detects Carbon Dioxide
NASA’s James Webb Space Telescope has captured direct images of multiple gas giant planets within an iconic planetary system. HR 8799, a young system 130 light-years away, has long been a key target for planet formation studies. The observations indicate that the well-studied planets of HR 8799 are rich in carbon dioxide gas. This provides […]
NASA’s Webb Images Young, Giant Exoplanets, Detects Carbon Dioxide
NASA’s James Webb Space Telescope has captured direct images of multiple gas giant planets within an iconic planetary system. HR 8799, a young system 130 light-years away, has long been a key target for planet formation studies. The observations indicate that the well-studied planets of HR 8799 are rich in carbon dioxide gas. This provides […]
Discovery Alert: ‘Super-Earth’ Swings from Super-Heated to Super-Chill
The Discovery A possible “super-Earth” orbits a relatively close, Sun-like star, and could be a habitable world – but one of extreme temperature swings, from scorching heat to deep freeze. Key Facts The newly confirmed planet is the outermost of three detected so far around a star called HD 20794, just 20 light-years from Earth. […]
Cosmic Mapmaker: NASA’s SPHEREx Space Telescope Ready to Launch
NASA’s latest space observatory is targeting a March 8 liftoff, and the agency’s PUNCH heliophysics mission is sharing a ride. Here’s what to expect during launch and beyond. In a little over a day, NASA’s SPHEREx space telescope is slated to launch from Vandenberg Space Force Base in California aboard a SpaceX Falcon 9 rocket. […]
NASA’s Webb Exposes Complex Atmosphere of Starless Super-Jupiter
An international team of researchers has discovered that previously observed variations in brightness of a free-floating planetary-mass object known as SIMP 0136 must be the result of a complex combination of atmospheric factors, and cannot be explained by clouds alone. Using NASA’s James Webb Space Telescope to monitor a broad spectrum of infrared light emitted […]