NASA Targets Aug. 30 Launch for Roman Telescope to Survey 1 Billion Galaxies
Updated
Updated · The Conversation · Aug 26
NASA Targets Aug. 30 Launch for Roman Telescope to Survey 1 Billion Galaxies
3 articles · Updated · The Conversation · Aug 26
Summary
Aug. 30, 2026 is NASA’s earliest launch target for the Nancy Grace Roman Space Telescope, which will map about 1 billion galaxies to probe dark matter, dark energy and cosmic expansion.
The mission grew from unused National Reconnaissance Office hardware transferred to NASA in 2012, then reworked for astronomy with a wide-field design that can image roughly 100 times more sky per shot than Hubble.
Roman also carries 18 near-infrared detectors totaling about 300 megapixels, plus a coronagraph to test techniques for spotting far fainter planets around other stars.
Beyond cosmology, the telescope will watch the Milky Way’s center for microlensing signals from rogue planets, extending a five-year survey mission that NASA has already positioned as a successor to Hubble and Webb.