资讯

Researchers from the University of Waterloo have proposed a new method to measure the Hubble constant that could help resolve one of modern cosmology's pressing puzzles: the Hubble tension.
Long before its launch into low Earth orbit in 1990, Hubble suffered from design conflicts ... that can be switched into its optical path has abundant handholds, tether points, and easily accessed ...
April 22, 2025 -- The Santa Monica College Planetarium next month will will eplore radio astronoomy and look back at the history of the Hubble Space Telescope that has been circling Earth for 35 years ...