Exoplanets

Astronomers using the Keck Observatory have measured the spins of distant giant planets and brown dwarfs, finding that the planets rotate faster than more massive brown dwarfs when mass and other factors are accounted for.

June 11, 2026 由 AI 报道

Astronomers using the James Webb Space Telescope have detected clear differences between the morning and evening sides of the ultra-hot exoplanet WASP-121 b. The observations show that the evening terminator is hotter and more expanded than the morning side.

Astronomers have discovered more than 10,000 previously unidentified candidate exoplanets by re-analyzing data from NASA's Transiting Exoplanet Survey Satellite. The findings, led by Joshua Roth at Princeton University, reveal planets orbiting fainter stars up to 6800 light-years away. While many candidates may prove real, experts caution about a high false positive rate.

April 22, 2026 由 AI 报道

Astronomers using the James Webb Space Telescope have detected thick water ice clouds on Epsilon Indi Ab, a cold gas giant resembling Jupiter. The finding, led by researchers at the Max Planck Institute for Astronomy, reveals less ammonia than expected in the planet's atmosphere. This challenges existing models and advances techniques for studying distant worlds.