From Jalopnik · Nicholas Werner · · 1m 10s
Nancy Grace Roman Telescope vs James Webb
Roman telescope surveys vast sky for new stars while Webb zooms on details.
In brief
Roman telescope surveys vast sky for new stars while Webb zooms on details. NASA's Nancy Grace Roman Space Telescope will find billions of new stars and planets, while James Webb Space Telescope provides high-resolution images of known objects. Originally reported by Jalopnik.
Roman Telescope's Journey
NASA's Nancy Grace Roman Space Telescope is en route to its service station 930,000 miles from Earth.
Webb Telescope's Mission
James Webb Space Telescope already explores the universe with high-resolution imaging technology.
Field of View Difference
Roman has a wide field of view capturing huge sky patches while Webb has narrow field of view for detailed images.
Mirror Technology
Webb's 21.3-foot primary mirror with 18 hexagonal segments provides high resolution but narrow field of view.
Roman's Detector Advantage
Roman's 7.9-foot mirror with 18 sensors captures wider sky areas with less detail than Webb.
Coronagraph Instrument
Roman's onboard Coronagraph blocks starlight to observe planets with greater detail.
Telescope Partnership
Roman will find new stars and planets, then send Webb to examine discoveries in detail.
What to remember
NASA's Nancy Grace Roman Space Telescope will find billions of new stars and planets, while James Webb Space Telescope provides high-resolution images of known objects.
