Roman telescope launches from Florida to map dark energy and distant worlds
A SpaceX Falcon Heavy lifted NASA's Nancy Grace Roman Space Telescope from Florida on 30 August 2026. Named for the agency's first chief astronomer, the observatory is heading to sun-Earth Lagrange Point 2 to survey billions of stars and galaxies with a field of view far larger than Hubble's. NASA and the mission team say the 5- to 10-year work targets dark energy, dark matter and exoplanets, with first images in 2027 if the plan holds. The build cost 4.3 billion dollars.
Science··Morning
A Falcon Heavy lifted Roman from Florida on 30 August
NASA says the Nancy Grace Roman Space Telescope left Kennedy Space Center in Florida on 30 August 2026 aboard a SpaceX Falcon Heavy, and shows the telescope transiting the Sun. The observatory is named after Nancy Grace Roman, the agency's first chief astronomer. A SpaceX Falcon Heavy lifted the 4.3 billion dollar observatory from Cape Canaveral at 7:26 local time on Sunday. The 5- to 10-year mission is to study dark energy and dark matter and to search for exoplanets.[1], [3]
At L2 the Sun stays fixed and the stare is built wider than Hubble's
Senior project scientist Julie McEnery says the observatory was shaped to measure the universe's accelerating expansion, to find exoplanets far from their stars by microlensing, and to run wide near-infrared surveys. McEnery says the spacecraft will orbit the sun-Earth L2 point, more than 900,000 miles from Earth, so the Sun stays in a fixed direction on the observatory and the craft stays thermally steady. NASA's survey plan is a look at stars and galaxies far wider than Hubble's, in service of dark energy, exoplanets and cosmic evolution. McEnery traces the concept to around 2000, after measurements showed the universe's expansion accelerating.[2], [1]
Sky mapping runs a thousand times faster than Hubble, with first images in 2027
McEnery says one month of Milky Way observations should yield a catalog of about 20 billion stars, and that Roman will survey the sky a thousand times faster than Hubble. Kristen McQuinn, head of the mission office at the Space Telescope Science Institute, said before launch that Roman would map the sky about 1,000 times faster than Hubble, and that every 10 months the mission will gather the equivalent of roughly 1,000 years of Hubble data; a new wide-field camera sees a field 100 times larger than Hubble's, with a mirror similar in size to Hubble's. McEnery says ground tests have already gathered more data than Hubble and Webb combined, and that 20 petabytes cannot be downloaded to a laptop. First images should arrive in 2027 if the plan holds.[2], [3]
