Scientists discover unusual inside-out planetary system

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Astronomers have found a planetary system around a red dwarf star where a rocky world orbits beyond two gas giants, challenging standard models of how planets form. The discovery around LHS 1903 suggests planets may arise sequentially rather than all at once.

Researchers led by Thomas Wilson at the University of Warwick identified the four-planet system using data from multiple telescopes, including the European Space Agency's Cheops satellite. The planets follow an unexpected order of rocky, gaseous, gaseous and rocky, with the outermost world appearing to have formed in a gas-depleted environment after the others had already taken shape.

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Unusual planet pair challenges traditional formation models

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.

Dying stars devour nearby giant planets, astronomers find

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Astronomers have discovered that aging stars expanding into red giants are engulfing close-orbiting giant planets. A study of nearly half a million stars shows fewer such planets around more evolved red giants, suggesting many have been destroyed. The findings come from data collected by NASA's Transiting Exoplanet Survey Satellite.

Sayansi

Scientists discover plasma rings as natural space weather stations on stars

Sayansi

Scientists detect oval orbit in black hole-neutron star merger

Sayansi

Supercomputers solve 50-year-old mystery of red giant stars

Japanese astronomers detect thin atmosphere on small trans-Neptunian object 2002 XV93

A team of astronomers in Japan has discovered evidence of a faint atmosphere surrounding the small trans-Neptunian object 2002 XV93. Previously, only Pluto was known to retain an atmosphere among bodies beyond Neptune due to its stronger gravity. The finding, made via a rare stellar occultation on January 10, 2024 and published in Nature Astronomy, indicates a short-lived atmosphere requiring continuous replenishment.

Simulation reveals how Kuiper Belt objects form snowman shapes

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Researchers at Michigan State University have developed a computer simulation showing that gravitational collapse can naturally produce double-lobed, snowman-like structures in the outer solar system. These contact binaries make up about 10 percent of planetesimals in the Kuiper Belt beyond Neptune. The findings, published in the Monthly Notices of the Royal Astronomical Society, explain a long-standing puzzle in astronomy.

Alhamisi, 21. Mwezi wa tano 2026, 14:07:46

JWST maps distinct weather on distant hot gas giant

Jumanne, 12. Mwezi wa tano 2026, 22:40:35

Hubble captures giant chaotic planet-forming disk

Jumatatu, 27. Mwezi wa nne 2026, 06:19:45

Astronomers identify 10,000 new exoplanet candidates in TESS data

Jumapili, 19. Mwezi wa nne 2026, 17:07:05

Einstein's relativity explains scarcity of two-sun planets

Jumatano, 8. Mwezi wa nne 2026, 02:04:27

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

Jumatano, 25. Mwezi wa tatu 2026, 05:35:05

Astronomers identify 45 rocky exoplanets in habitable zones

Alhamisi, 19. Mwezi wa tatu 2026, 00:41:15

JWST finds thick haze blocking view of super-puff exoplanet Kepler-51d

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