Exoplanets

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.

3. mai 2026 Rapportert av AI

Astronomers at the University of Warwick have used a new AI system called RAVEN to confirm more than 100 exoplanets from NASA's Transiting Exoplanet Survey Satellite (TESS) data. The discoveries include 31 newly identified worlds, many orbiting close to their stars, along with thousands of candidates. The findings reveal rare planet types and precise measurements of planetary occurrence rates around Sun-like stars.

NASA's James Webb Space Telescope has observed an unusually thick haze on the exoplanet Kepler-51d, obscuring its atmospheric composition. This super-puff planet, part of a rare low-density system around the star Kepler-51, challenges standard models of planetary formation. The findings, led by Penn State researchers, were published on March 16 in the Astronomical Journal.

20. februar 2026 Rapportert av AI

Astronomers have conducted a thorough search for radio signals from the exoplanet K2-18b, a potential water world 124 light years away, but detected none indicative of advanced life. The planet previously sparked interest due to possible atmospheric signs of life, though those claims were later questioned. This latest effort used powerful telescopes to scan for transmissions similar to Earth's.