Space Observatory
Nancy Grace Roman Space Telescope
Nancy Grace Roman Space Telescope is currently about 1,552,428 kilometres from Earth, or 0.010 astronomical units, which puts a one-way radio signal 5 seconds out. It is 1.020 astronomical units from the Sun.

NASA’s next great observatory, with a mirror the size of Hubble’s and a field of view a hundred times wider. It will survey billions of galaxies to map dark energy, and watch for the brief flickers that reveal distant planets.
Launching to the Sun-Earth L2 point, where it will join Webb.
Right now
- Distance from Earth
- 1,552,428 km (0.010 AU)
- Distance from the Sun
- 152,652,962 km (1.020 AU)
- One-way signal time
- 5 seconds
The mission
- Status
- Planned
- Operator
- NASA
- Operating
- Earth Orbit