NASA's “largest and most technologically complex space telescope” they’ve ever built just completed its comprehensive systems test.
The space agency says a tentative March 2021 launch date will be re-evaluated this month.
Hubble Celebrates 34th Anniversary With A Look At The Little Dumbbell Nebula
Eurasia Review
In celebration of the 34th anniversary of the launch of NASA's legendary Hubble Space Telescope on April 24, astronomers took a..