On October 9, 2022, gamma-ray burst GRB 221009A sent high-energy radiation toward Earth, with the Carpet detector recording an unexplained 300 TeV photon-like event that should have been absorbed during transit. Scientists Galanti and Roncadelli propose that axion-like particles and violations of Lorentz invariance could allow such extreme-energy photons to survive the journey through intergalactic space.
LightSpeed is an interactive visualizer that demonstrates time dilation effects by progressively showing speeds from standing still up to near light speed, with 24 stages including everyday objects, spacecraft, and cosmic phenomena to illustrate how relativity affects time.