We don’t yet know what dark matter is, yet it makes up 85% of all the matter in the universe. The Roman Space Telescope will aim to unravel the mystery. With a field of view 100 times wider than the Hubble Space Telescope’s, Roman will study in near-infrared light the atmospheres of planets orbiting other stars, making other exoplanet discoveries along the way. The mission is named after Dr. Nancy Grace Roman, NASA’s first chief of astronomy and advocate for the development of the Hubble Space Telescope.