NASA's Roman Telescope to Revolutionize Measurement of Universe's Expansion

The Nancy Grace Roman Space Telescope, set for a 2027 launch, aims to resolve the Hubble tension by using gravitationally lensed supernovae.

NASA's Roman Telescope will use gravitationally lensed supernovae to measure the Hubble constant, offering a new approach to understanding the universe's expansion rate.
The telescope's wide field of view and high-resolution imaging will significantly increase the chances of detecting these rare celestial events.
Only eight gravitationally lensed supernovae have been discovered so far, but the Roman Telescope is expected to find more, helping to resolve discrepancies in current measurements of the universe's expansion.
The project involves creating data reduction pipelines and simulated imaging to automatically detect these supernovae, with over 50,000 simulated lenses planned for training.
The Roman Telescope's efforts could provide the most complete measurements of the universe's expansion rate to date, shedding light on cosmic mysteries such as dark energy.