Martin Bauer

@martinmbauer · Nov 4, 2025

Because of the Big Bang! For photons with extremely large energy the Universe is opaque. They would annihilate with cosmic microwave background photons and produce a shower of less energetic particles before they could travel anywhere

Anastasia@demystifysci· Nov 3, 2025

gamma rays are the shortest wavelength of light, on the order of 10-12 meters. planck length, the allegedly smallest unit of the universe, is 10-35 meters. how come we don't see light down to planck wavelengths? is it a detector problem, or a limit of the universe?

Elon Musk

@elonmusk

07:27 PM · November 4, 2025 · 47.4K views

453

X →