[HangnJudge]

Wonderful source for power in space
used in Galileo probe which had 49.25 pounds of Pu-238 as a primary power source. It is used as a heat source in radiothermal generators to produce electricity for unmanned spacecraft and interplanetary probes.
88 year half life
17 Ci/g mostly alpha

Great stuff

[popparollo]

Yes, Will be an additional possible power source for future exploration missions and Bases in Space.

[SC DOC]

88 year half life 17 Ci/g mostly alpha Great stuff

Except that it decays to U-234 whose alpha decay is almost as energetic as Plutonium 238 (4.77 vs 5.5 MEV) and its half life is 245,000 years.