Possible Origin for Longest Gamma-ray Burst Observed to Date | NOIRLab FriendsofNASA.org | Full Article: https://www.friendsofnasa.org/2025/12/possible-origin-for-longest-gamma-ray.html Astronomers have observed the longest-ever gamma-ray burst—a powerful, extragalactic explosion that lasted over seven hours. Rapid follow-up observations with the U.S. Department of Energy-fabricated Dark Energy Camera and the International Gemini Observatory, funded in part by the U.S. National Science Foundatio