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Yesterday โ€” 15 September 2026Ars Technica

The Roman telescope has enough gas for 22 years, double NASA's expectations

15 September 2026 at 18:26

NASA's Nancy Grace Roman Space Telescope is gliding toward its distant observation post on a pinpoint trajectory so precise that engineers estimate the spacecraft's fuel load will last twice as long as their initial expectations, the space agency confirmed Monday.

The $4.3 billion observatory's designers originally planned to load enough propellant into Roman's four fuel tanks for a minimum lifetime of five years, plus a potential five-year mission extension. That was a conservative estimate. NASA officials knew an on-target launch and perfect execution of the observatory's first post-launch course correction maneuver would leave Roman with a hearty fuel reserve.

"As a result of exquisite planning by our orbital dynamics team, brilliant execution by the operations team, and a precise launch from SpaceX, Roman has fuel for at least 22 years of potential science operations," Jamie Dunn, center director at NASA's Goddard Space Flight Center, said in a press release.

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Before yesterdayArs Technica

NASA's next "great observatory" begins mission to widen our view of the Universe

31 August 2026 at 09:01

NASA's $4.3 billion Nancy Grace Roman Space Telescope, equipped with a 300-megapixel camera sighted through a refurbished spy mirror, launched Sunday from Kennedy Space Center in Florida on a mission to reveal the mysterious forces driving the Universe.

The new mission will extend the vision of NASA's other famous observatories, providing a field of view 100 times wider than the Hubble Space Telescope and complementing the groundbreaking work of the James Webb Space Telescope. Roman is just the second NASA-led astrophysics mission to launch this century, following the launch of Webb in 2021.

Unlike Webb, which suffered many years of delays before reaching space, Roman arrived at the launch pad nine months before NASA's commitment to send it skyward by May 2027.

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