Flyby of Io with Repeat Encounters

The mission was first presented in 2012[2] for a possible future consideration by NASA's New Frontiers program.

[3] If developed in the future, the FIRE spacecraft would use three gravity assists to reach Jupiter six years later.

[3] The spacecraft would orbit Jupiter and perform 10 flybys of Io, some as low as 100 km (62 mi) from its surface.

[3][1] ASRG is a radioisotope power system under development at NASA's Glenn Research Center.

It uses a Stirling power conversion technology to convert radioactive-decay heat into electricity for use on spacecraft.