This is how colossal NASA's new Hubble-replacing space telescope is

9:47am PST - November 9th, 2019    will smith - Mashable

In a cavernous Los Angeles County cleanroom, Northrop Grumman and NASA engineers have pieced together the space agency's prized next-generation telescope, the James Webb Space Telescope. It's big. How big? NASA tweeted a picture of a human standing on a crane…