DS-2
DS-2 was lost before returning science, so no publication search was run; it counts as zero in the comparisons. Deep Space 2. Launched 1999. Life-cycle cost: $58M in 2025 dollars. Status: Failure.
Impactor
DS-2 was lost before returning science, so no publication search was run; it counts as zero in the comparisons. Deep Space 2. Launched 1999. Life-cycle cost: $58M in 2025 dollars. Status: Failure.
Impactor