# NASA's Roman Space Telescope Has Fuel for 22 Years, Double Its Planned Lifetime

*2026-09-19 06:01 UTC · Science · 1 min read*

> A precise first course-correction burn used just 9% of its fuel budget, giving the telescope propellant for at least 22 years of operations.

NASA says its Nancy Grace Roman Space Telescope now has enough propellant for at least 22 years of science, more than double its 10-year design life. The first mid-course correction burn on August 31 was more than 99% accurate and used only about 40 pounds of fuel, against a budget of 441 pounds.

The extension comes from three sources of roughly four years each: the efficient first burn, extra propellant loaded at launch because the observatory weighed 17,760 pounds instead of the 21,605 pounds assumed, and further savings expected from a second burn and orbital insertion.

The figures are projections. The second correction is planned for later in September, and Roman is due to reach its orbit at the Sun-Earth L2 point around early December. Fuel is also not the only limit on how long the mission can operate.

## Sources

- [science.nasa.gov](https://science.nasa.gov/blogs/roman/2026/09/14/fuel-savings-double-potential-lifetime-for-nasas-roman-mission/)
- [sciencedaily.com](https://www.sciencedaily.com/releases/2026/09/260918024802.htm)

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