"JWST Discovers Rare Quadruple Exoplanet System"

The James Webb Space Telescope (JWST) has observed the HR 8799 system, located 133 light-years away, and detected four exoplanets using its MIRI instrument. The system is young and contains massive planets on wide orbits, making it a rare find. The observations have provided valuable insights into the planetary atmospheres, confirming that they are not brown dwarfs. The JWST also examined the system's debris disk and determined that a previously debated object is a background object. These findings demonstrate the capabilities of the JWST's MIRI instrument in characterizing young exoplanetary systems and lay the groundwork for future observations.