New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against ...

NASA’s Fermi Gamma-ray Space Telescope "detected none of the high-energy gamma-ray light" from a nearby supernova. NASA ...

Gamma-ray bursts (GRBs) are the most energetic events ever observed in the universe. These powerful outbursts can shine a ...

Short wavelengths of electromagnetic waves are ultraviolet, x-rays and gamma rays. Past paper trend: Questions often require you to draw a graph from a table of data and then describe or explain it.

Mysteriously, ... Apr. 11, 2025 — Astronomers are investigating the longest and most energetic bursts of X-rays seen from a newly awakened black hole. Watching this strange behavior unfold in ...

All runs Wins only Wins & places After 60-day break ...