From what I've seen, the only ways to restore the Mystery Goo and Science Jr. parts are either to have a scientist go on EVA or to use the lab. But this is a problem.
I want to send a science probe on a one-way trip to Eve's surface. Maximizing the science I'll get will require doing experiments in high atmosphere, low atmosphere, and on the ground/ocean. (I've already done a manned Gilly round-trip mission, so there's no more science to get from space.) This probe will have a barometer, thermometer, seismometer, atmospheric pressure scanner, Science Jr., and Mystery Goo. However, AFAIK the only way to get science from the 3 biomes I want to is to have 3 Science Jrs. and 3 Goos. But that's very heavy!
Is there any way to solve my problem, besides stranding a scientist on the purple planet?