A new era of space exploration began today with the launch of the Nancy Grace Roman Space Telescope. Roman is poised to solve one of the fundamental mysteries of the universe: what it’s made of.

“There’s something really fundamental that we don’t understand about the nature of our universe itself, and Roman is purpose-built to address and provide the data that we need to address these questions,” Julie McEnery, Roman’s senior project scientist and an astrophysicist at NASA Goddard Space Flight Center in Greenbelt, Md., said in a 27 August interview on NASA’s Curious Universe podcast.

Roman launched from Kennedy Space Center in Florida at 7:26 a.m. local time on 30 August. The telescope is named after NASA’s first chief of astronomy, Dr. Nancy Grace Roman (1925–2018). Roman was also the first woman to be a NASA executive and is widely considered to be the “Mother of the Hubble Space Telescope” for her work to make that pioneering telescope a reality.

Roman is a NASA mission and received instrumentation and science support from the Centre national d’études spatiales in France, the European Space Agency, Japan Aerospace Exploration Agency, and the Max Planck Institute for Astronomy in Germany. The telescope has a field of view 100 times that of the Hubble Space Telescope and is capable of capturing much more detail in a single glimpse.

Roman is expected to probe deep into the early universe and study more than a billion galaxies. In doing so, scientists hope to create 3D maps of the evolving universe.