PSR J2322−2650 b is a tidally locked exoplanet discovered in 2017, orbiting the millisecond pulsar PSR J2322−2650. In 2025, the James Webb Space Telescope found that the planet's atmosphere is dominated by helium and carbon, likely featuring clouds of carbon soot that condense to create diamonds, but an unexplained absence of nitrogen and oxygen.
PSR J2322−2650 b is a tidally locked exoplanet discovered in 2017, orbiting the millisecond pulsar PSR J2322−2650. In 2025, the James Webb Space Telescope found that the planet's atmosphere is dominated by helium and carbon, likely featuring clouds of carbon soot that condense to create diamonds, but an unexplained absence of nitrogen and oxygen.
Source: Wikipedia "PSR J2322−2650 b" · CC BY-SA 4.0
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