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Carbon Atmosphere

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Diamond-Rain World Around a Pulsar Challenges Planet-Formation Theory
space13 days ago

Diamond-Rain World Around a Pulsar Challenges Planet-Formation Theory

Using the James Webb Space Telescope, astronomers identified PSR J2322-2650b, a Jupiter-mass world orbiting a pulsar. Its atmosphere is unusually rich in helium and carbon, with nitrogen and oxygen largely absent, and its clouds may condense soot into diamond, implying a “diamond rain.” The planet’s nearly pure carbon composition and puzzling formation history defy current models, challenging the line between planet and stellar remnant and prompting new theories about how such worlds form.

via Space Daily|
#carbon-atmosphere#diamond-rain#exoplanet
Lemon-shaped exoplanet around a pulsar reveals carbon-rich atmosphere, baffling formation theories
science21 days ago

Lemon-shaped exoplanet around a pulsar reveals carbon-rich atmosphere, baffling formation theories

NASA’s James Webb Space Telescope observed PSR J2322-2650b, a Jupiter-mass planet in a lemon-like orbit around a millisecond pulsar, with an atmosphere dominated by molecular carbon (C2 and C3) rather than water or methane. The extreme carbon-to-oxygen and carbon-to-nitrogen ratios, plus the planet’s shape and winds, challenge current formation theories. The finding is based on spectra from a single planet using one instrument, so while striking, it highlights a new puzzle rather than a confirmed explanation for how such worlds form.

via Space Daily|
#carbon-atmosphere#exoplanet#planet-formation
NASA’s Webb Telescope Unveils Bizarre Atmosphere on Lemon-Shaped Exoplanet
science6 months ago

NASA’s Webb Telescope Unveils Bizarre Atmosphere on Lemon-Shaped Exoplanet

Scientists have discovered a bizarre, lemon-shaped exoplanet called PSR J2322-2650b orbiting a pulsar, with a mysterious carbon-rich atmosphere that may produce diamonds, challenging current understanding of such systems. Additionally, breakthroughs include the creation of the shortest X-ray pulses, fossilized bee nests inside mammal bones, and evidence that swearing can improve physical performance.

via 404 Media|
#black-widow-system#carbon-atmosphere#diamond-planet
JWST Discovers Nearly Pure Carbon Planet That Defies Expectations
science8 months ago

JWST Discovers Nearly Pure Carbon Planet That Defies Expectations

The James Webb Space Telescope discovered an unusual exoplanet orbiting a pulsar with an atmosphere almost entirely made of carbon, challenging existing models of planetary formation and composition, especially in black widow systems. This unexpected finding suggests new avenues for understanding planetary atmospheres and the processes that create them.

via SciTechDaily|
#black-widow-pulsar#carbon-atmosphere#exoplanet