NASA's Webb Observes Exoplanet Whose Composition Defies Explanation
13 hours ago
- #exoplanet
- #astronomy
- #James Webb Space Telescope
- Scientists observed a rare exoplanet, PSR J2322-2650b, with a helium-and-carbon-dominated atmosphere, challenging formation theories.
- The exoplanet orbits a pulsar, a rapidly spinning neutron star, and has extreme temperatures ranging from 1,200°F to 3,700°F.
- Molecular carbon (C3 and C2) dominates the atmosphere, a unique feature not seen in any of the approximately 150 studied planets.
- The planet's close orbit (1 million miles) results in a 7.8-hour year and gravitational forces distorting it into a lemon shape.
- This system is considered a 'black widow' system, where the pulsar may have consumed its companion, now an exoplanet.
- The exoplanet's carbon-rich composition defies known formation mechanisms, presenting a mystery for astronomers.
- The James Webb Space Telescope's infrared capabilities were crucial for this discovery, enabling detailed study of the exoplanet.