Side-by-side: Roman, Hubble, JWST, and Euclid compared on mirror size, field of view, wavelength, orbit, and science goals — with a full comparison table.
The Nancy Grace Roman Space Telescope launches in September 2026. It will map 100× more sky than Hubble per snapshot, hunt dark energy, and photograph's next great observatory.
Hubble at 34, Kepler's 2,600 exoplanets, James Webb's deepest infrared views, plus Nancy Grace Roman and Euclid — the space telescopes that rewrote astronomy.
