US EditionPossible New Dwarf Planet Spotted Near the Edge of the Solar System
- Scientists identified 2017 OF201, a 435-mile-wide object orbiting the distant outer solar system with a highly elongated path.
- Researchers found 2017 OF201 through seven years of telescope observations in Chile and Hawaii, as part of studies on trans-Neptunian objects.
- This object is positioned roughly 90.5 times the Earth-Sun distance away from the sun, completes an orbit around the sun approximately every 25,000 years, and is thought to be somewhat smaller than the dwarf planet Ceres.
- Astrophysicist Sihao Cheng noted, "Its orbit is very wide and eccentric," suggesting an unusual migration potentially caused by a giant planet's gravity.
- The discovery implies the outer solar system and Kuiper Belt are not deserted and could indicate hundreds of similar objects exist, challenging existing models including Planet Nine hypotheses.
61 Articles
61 Articles
TOI-6894 is the smallest star known to scientists that has such a colossus orbiting it.
A transiting giant planet in orbit around a 0.2-solar-mass host star
Planet formation models indicate that the formation of giant planets is substantially harder around low-mass stars due to the scaling of protoplanetary disc masses with stellar mass. The discovery of giant planets orbiting such low-mass stars thus imposes strong constraints on giant planet formation processes. Here we report the discovery of a transiting giant planet orbiting a 0.207 ± 0.011 M⊙ star. The planet, TOI-6894 b, has a mass and radius…
James Webb Space Telescope unveils fiery origins of a distant, hellish exoplanet
Astronomers using the James Webb Space Telescope have uncovered the fiery origin of WASP-121b, a distant exoplanet stretched by tidal forces and rich in chemical clues that reveal its dramatic journey.
The discovery, made from the Observatory of Sierra Nevada (OSN), breaks with current theories about the formation of giant planets and opens a promising path for future research Trump's cuts trigger the options that Hawaii's supertelescope finally ends in La Palma Planets are born from the material that surrounds young stars, in what is known as the protoplanetary disk. If the dust and gas of this disk is grouped together and reaches enough mass…
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