Artist’s illustration of the Nancy Grace Roman Space Telescope. Credit: NASA’s Goddard Space Flight Center
Using a donated Hubble-class mirror originally built for a spy satellite, NASA’s Roman Space Telescope is poised for launch Sunday on a $4.3 billion mission to open a new window on the universe, taking wide-angle, ultra-sharp images that would require a half million 4K TVs to show in full.
Put another way, officials say a single full-resolution image from Roman’s 300-megapixel wide-field camera would cover 45 city blocks or the entirety of El Capitan in Yosemite National Park.
And it will collect that data faster than any previous NASA spacecraft. The Hubble Space Telescope has beamed back about 172 terabytes of data over 30 years while Roman will downlink a staggering 2,500 terabytes over its five-year primary mission.
Put yet another way, Roman’s sensitive wide field camera and advanced detectors will scan broad swaths of the cosmos 1,000 times faster than Hubble, collecting as much data in one month as its older cousin could manage in a century.
