Teleskop James Webb temukan planet raksasa beriklim sedang dengan metana

Jumat, 22 Mei 2026

Dilaporkan oleh AI

Para astronom yang menggunakan Teleskop Luar Angkasa James Webb milik NASA telah mempelajari atmosfer TOI-199b, sebuah planet langka seukuran Saturnus dengan suhu sekitar 175 derajat Fahrenheit. Temuan ini menandai pengamatan terperinci pertama terhadap planet ekstrasurya raksasa yang beriklim sedang.

Planet ini mengorbit bintang yang berjarak lebih dari 330 tahun cahaya dari Bumi dan menyelesaikan satu orbit setiap 100 hari. Para peneliti mendeteksi metana di atmosfernya menggunakan spektroskopi transmisi selama transit tujuh jam yang diamati dalam total waktu 20 jam.

Artikel Terkait

JWST uncovers metal-poor atmosphere on exoplanet TOI-5205 b

Astronomers using the James Webb Space Telescope have detected an unusually metal-poor atmosphere on the Jupiter-sized exoplanet TOI-5205 b, which orbits a small, cool star. The planet's atmospheric metallicity is lower than that of its host star, challenging theories of giant planet formation. The findings come from a study led by researchers at NASA's Goddard Space Flight Center and Carnegie Science.

JWST maps distinct weather on distant hot gas giant

Kamis, 21 Mei 2026 Dilaporkan oleh AI

Astronomers used the James Webb Space Telescope to study the atmosphere of WASP-94A b, a tidally locked gas giant 690 light-years away. The observations revealed cloudy mornings and clear evenings on the planet. The findings were published in Science.

Ilmu Pengetahuan

Scientists discover unusual inside-out planetary system

Ilmu Pengetahuan

Astronomers identify 10,000 new exoplanet candidates in TESS data

Ilmu Pengetahuan

Dying stars devour nearby giant planets, astronomers find

AI tool RAVEN confirms over 100 exoplanets in NASA TESS data

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.

Study reveals boiling oceans beneath icy moons' surfaces

Senin, 02 Maret 2026 Dilaporkan oleh AI

New research indicates that hidden oceans on icy moons around outer planets may boil due to tidal heating, explaining unusual surface features. The study, published in Nature Astronomy, focuses on smaller moons like Enceladus, Mimas, and Miranda. Lead author Max Rudolph from UC Davis highlights the processes shaping these worlds over millions of years.

Titan's flat plains covered by organic snow layer

About 65 percent of Saturn's moon Titan consists of uniform flat plains likely coated in up to a meter of fluffy organic material from its atmosphere. Researchers analyzing radar data from NASA's Cassini spacecraft propose a two-layer surface model. This finding could inform future missions to the hazy moon.

12 Mei 2026 22.40