Is Bringing a Spacecraft Back from the Dead Worth the Cost?

Right now, the International Sun-Earth Explorer (ISEE-3) spacecraft, which was launched in 1978, is floating in deep space. Its fate will depend on the success of a recent crowdfunding project called "ISEE-3 Reboot Project". If the project can raise $125,000 by the end of March, then there's a chance that scientists will be able to revive the spacecraft and send it on a trajectory that will bring it into orbit around Earth where it can begin collecting data, again. So far, the project has collec...