From this vantage point, Roman will conduct an unprecedented survey of the universe. Its field of view is 100 times larger than Hubble’s and, according to NASA, it can survey the sky 1,000 times faster using its 300-megapixel infrared camera. Roman also has a Coronagraph system that can block and mask glare from stars, allowing it to directly image exoplanets, even smaller, older, and colder planets orbiting close to their stars.
Roman will also conduct detailed 3D scans to help map the distribution of dark matter and narrow down the potential candidates for its makeup. Using the same 3D scans and gravitational lensing measurements, Roman will attempt to map how dark energy shaped the evolution of the universe.
Nicky Fox, associate administrator for the Science Mission Directorate at NASA, said in a press release that “Roman will be a discovery machine that will bring us closer than ever before to answering humanity’s most profound questions about our cosmic history.”