Humans jut do not belong in space yet. Most science and astronomy missions can will continue to be performed through machinery and automation. The cancellation of all most of the other missions is a direct result from this focus. We are all very curious about what's out there, and the absolute better way to satiate this curiosity and to actually discover new things is with machine focused missions: rovers, landers, and specially telescopes.
Further study into the effects of space on humans for the purposes of leaving Earth due to some apocalypse is very exagerated as well. Even in a bad apocalyptic scenario, the resulting Earth would still be better to live in than any other planet or moon we currently can reach.
The pictures from back from Juno, New Horizons, the Mars rovers, and the Hubble continue to inspire the future generations, and earn support from the general populace already.