NASA launched the Nancy Grace Roman Space Telescope on 30 August. The telescope is designed to observe approximately 12 per cent of the sky during its five-year primary mission.
Scientists understand that dark matter and dark energy constitute roughly 95 per cent of the universe's total mass and energy. The Roman Space Telescope incorporates a powerful camera featuring 300 megapixels.
Furthermore, the Roman telescope can map areas of the sky about 1000 times faster than the Hubble Space Telescope. Its field of view is estimated to be about 100 times larger than that of Hubble.
In terms of physical structure, the Roman telescope weighs less than a quarter of the weight of Hubble. Weak gravitational lensing provides a method to measure the shape and clustering of galaxies influenced by dark matter and dark energy.
Researchers note that the pattern of galaxy clustering changes if the fundamental nature of dark matter differs. To measure the universe's expansion, scientists will utilise Type Ia supernovae explosions.
