Westerlund 1 • Fermi Spots Young Star Cluster Blowing Gamma-Ray Bubbles • 19.12.25 VIDEO: This image of super star cluster Westerlund 1 was captured with the Near-InfraRed Camera on NASA’s James Webb’s Space Telescope. The cluster is largely hidden at visible wavelengths by dust clouds, which infrared light penetrates. Westerlund 1’s large, dense, and diverse stellar population of massive stars has no other known counterpart in the Milky Way. Credit: ESA/Webb, NASA & CSA • For the first time, as

Unique Feature Found in Bright Gamma-Ray Burst | NASA Fermi Space Telescope FriendsofNASA.org: In October 2022, astronomers were stunned by what was quickly dubbed the BOAT—the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA’s Fermi Gamma-ray Space Telescope reveals a feature never seen before. GRBs are the most powerful explosions in the cosmos and emit copious amounts of gamma rays, the highest-energy form of light. The most common typ