We keep ruling out candidates for dark-matter. One remaining support for its existence as something, anything is the 13.7 billion year universe. If it were, oh, 26.7 Gy then it wouldn't be needed. Rajendra Gupta, supporting the older universe, is dismissing dark-matter.
Gupta combines how the forces of nature decrease over cosmic time
(covarying coupling constants) and about light losing energy when it travels a long distance
(tired light).
I'd still like to know why unseen mass is inferrable for some galaxies (like ours) where not for others. And I'd like to know where are the stars or whitedwarfs in our Milky Way older than 14 Gy. Last time we looked at candidates (which were too light for main-sequence), these were too young. Light losing energy over distance suggests it experiences time, like neutrinos. This doesn't seem Einstein-compliant, but maybe it experiences spacetime; consider, it has momentum without mass. Or does each photon spread out over distance, like groups of photons in reciprocal-square?
UPDATE 4/2: More darkmatter not found.
No comments:
Post a Comment