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NASA Unveils Completed Roman Space Telescope, Targets Early September Launch

Project leaders credit cost caps plus forward funding for an early finish within a $4.3 billion limit.

Overview

  • At Goddard on Tuesday, NASA showed the fully assembled Roman telescope, confirmed testing is complete, and set shipment to Kennedy in mid-June with a SpaceX Falcon Heavy launch as soon as early September 2026.
  • Roman pairs a Hubble-size 2.4-meter mirror with a wide-field camera that images about 100 times more sky per shot and surveys more than 1,000 times faster than Hubble.
  • The mission will map hundreds of millions of galaxies and thousands of supernovae to probe dark matter and dark energy, while running a microlensing campaign expected to find tens of thousands of exoplanets.
  • A high-contrast coronagraph will test starlight blocking to directly image far fainter planets than current instruments can, laying groundwork for a future Habitable Worlds Observatory.
  • Operating near the Sun–Earth L2 point about 930,000 miles from Earth, Roman is projected to return roughly 20,000 terabytes of data in five years to guide follow-ups by Webb, Hubble, Euclid, and Rubin.