How the James Webb Space Telescope is helping size up tiny dwarf planets
image via Space.com
March 21, 2025, 8:00 PM
- •Pluto and Sedna have different amounts of methane and ethane on their surfaces.
- •This difference is due to the different masses of the two objects.
- •The study also explains the absence of methane on another Kuiper Belt object known as Gonggong.
A new study suggests that Pluto and Sedna, two dwarf planets in the Kuiper Belt, have different masses because methane has escaped from Sedna's atmosphere over time.
Entities Mentioned
Amelia BettatiJonathan Lunine
Topics Covered
The Universe
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