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Simon Petrus

2 articles · 30 co-authors · latest: 2026-07-06

Dust Storms on a Rogue Planet

VHS 1256B is a giant planet, drifting alone in the dark. Its brightness swings by 40% due to global storms of scorching sand. Data from the James Webb telescope and computer models showed that dust clouds blanket the planet entirely, explaining the strange changes in its light and color. This discov
arXiv:2511.23163 · 2025-11-28

Waltz of Invisible Moons: The First Spectroscopic Find

Astronomers have discovered planetary-mass moons around a brown dwarf for the first time using high-precision spectroscopy. Observations with the VLT and the CRIRES+ spectrograph revealed periodic wobbles in the radial velocity of the starlike object CD-35 2722 B, hinting at at least one moon about
arXiv:2607.05193v1 · 2026-07-06