Nancy Grace Roman Space Telescope

The Roman Space Telescope is a NASA observatory designed to settle essential questions in the areas of dark energy, exoplanets, and infrared astrophysics.

More About Roman

A Wide Field of View

The Roman Space Telescope will have a panoramic field of view of the universe that is 100 times wider than the Hubble Space Telescope.

Why Roman?

Dark Energy

The Roman Space Telescope will delve into the mystery of dark energy by studying how the distribution of galaxies and dark matter has changed throughout cosmic history.

Learn About Dark Energy

Look Around the Telescope

This interactive feature provides views of the telescope from various perspectives. Check the completion status, and discover exactly where the pieces are being built.

View this Interactive Feature

Roman Video Game

You have been given observation time on the Nancy Grace Roman Space Telescope! How many astrophysical objects can you catch?

Play the Game!

Exoplanets

The Roman Space Telescope will complete the statistical census of planetary systems in the galaxy by using microlensing, the universe’s own magnifying glass, to find more than a thousand exoplanets.

Learn About Exoplanets

In the News

NASA’s Roman Space Telescope’s ‘Eyes’ Pass First Vision Test

APR 17, 2024 - Engineers at L3Harris Technologies in Rochester, New York, have combined all 10 mirrors for NASA’s Nancy Grace Roman Space Telescope. Preliminary tests show the newly aligned optics, collectively called the IOA (Imaging Optics Assembly), will direct light into Roman’s science instruments extremely precisely. This will yield crisp images of space once the observatory launches.
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For Scientists

Engaging with Roman

Explaining the Core Community Survey Definition Process and engaging with Roman on technical and science topics. Each of the Core Community Surveys will provide data to many teams conducting a large number of diverse science investigations. Roman’s science objectives that will be addressed by the Core Community Surveys are Astrophysics with wide area near-IR surveys, Cosmology and Exoplanet demographics. View the Core Community Survey Definition process