Roman can survey a patch of sky 100 times larger than the James Webb Space Telescope and look more than 10 billion light-years away, giving it a wide, deep view of the early universe.
That reach is designed to capture images from the universe’s earliest epochs, helping scientists study how cosmic expansion evolved over time.
Named for NASA’s first female executive, the telescope is expected to expand astronomers’ observational window by orders of magnitude.
Will NASA’s Roman telescope finally reveal whether dark energy is constant—or show that the standard model of the universe is incomplete?
How could a telescope with 100 times Webb’s field of view reshape cosmic history and uncover thousands of hidden exoplanets?
The Nancy Grace Roman Space Telescope: Mapping Dark Energy, Exoplanets, and Asteroids with 1.4 TB Daily Data and Global Cloud Access
Overview
NASA's Nancy Grace Roman Space Telescope launched in August 2026, quickly deploying its solar array sunshield to provide power and thermal protection. Thanks to precise launch and efficient fuel use, Roman's mission lifetime is expected to more than double. Positioned at the Sun-Earth L2 point, Roman keeps its instruments cold and enjoys a clear, uninterrupted view of deep space. Its wide-angle design allows it to survey the sky far faster than Hubble, generating huge amounts of data daily. This data is processed and shared instantly through a cloud-based platform, enabling researchers worldwide to collaborate and make discoveries together.