The Kilopower reactor uses a chain reaction to trigger fission so the U-235 will...

baking on Nov 16, 2019 | parent | context | favorite | on: Interstellar space even weirder than expected, NAS...

The Kilopower reactor uses a chain reaction to trigger fission so the U-235 will be depleted much faster than the half-life. Wikipedia says its operational life is 12-15 years.