保护地球，探索宇宙，发现文明
2022年10月17日 X-Ray Rings Around a Gamma Ray Burst Image Credit: NASA Swift Obs.; Data: B. Cenko (NASA’s GSFC), A. Beardmore (U. Leicester) et al.; Processing: J. Miller (U. Michigan) Explanation: Why would x-ray rings appear around a gamma-ray burst? The surprising answer has little to do with the explosion itself but rather with light reflected off are...
2022年10月15日 GRB 221009A Image Credit: NASA, DOE, Fermi LAT Collaboration Explanation: Gamma-ray burst GRB 221009A likely signals the birth of a new black hole, formed at the core of a collapsing star long ago in the distant universe. The extremely powerful blast is depicted in this animated gif constructed using data from the Fermi Gamma Ray Space Telescope....