NASA’s Roman Telescope Nears Full Science Operations With 200x Hubble’s View
Updated
Updated · asiae.co.kr · Nov 7
NASA’s Roman Telescope Nears Full Science Operations With 200x Hubble’s View
3 articles · Updated · asiae.co.kr · Nov 7
Summary
NASA’s Nancy Grace Roman Space Telescope is in final equipment checks after its Aug. 30 launch, preparing to begin full-scale observations focused on dark energy and exoplanets.
With a 2.4-meter mirror and a near-infrared field of view about 200 times wider than Hubble’s, Roman is built to repeatedly scan broad sky areas for supernovae, microlensing events, galaxies and other hard-to-predict targets.
One core mission is testing whether dark energy changes over time by mapping galaxies, Type Ia supernovae and weak gravitational lensing, potentially helping verify tentative DESI findings that challenge the standard constant-dark-energy model.
A second mission targets exoplanets—especially distant and rogue worlds—with Roman expected to find about 1,400 through microlensing and to refine planet-mass estimates through parallax when paired with Korea’s KMTNet network.
That collaboration could also strengthen Korea’s case for its planned KLST project—two 6.5-meter telescopes able to observe up to 13,000 objects at once—though funding, staffing and international partnerships remain unresolved.