Reinvest in a small nuclear powered engines program. NOW!
Surely, a sign that the NASA explorations & others around the world may need to re-investigate or indeed reinvest in small nuclear powered engines. Nuclear powered rocket motors could surely, now, in this age of extreme Health and Safety margins be built which will pass the tests of endurance, resilience and safety. The USA had a huge R&D program in the very early 1960's thru early 70's; which endured the Kennedy Presidency.
Project Nerva and the Phoebus nuclear-rocket motors, just by example.
There was much done, with several motors from a handful of major engineering players at that time,
I would revisit it, without hesitancy.
We are unnecessarily, now, holding ourselves back from the very urgent business of exploration of space, both near-field and deep.
The long & short of it is, intelligently & ethically motivated humans must succeed in space and stop tinkering. Start taking bold-steps. And stop talking a strong space-program down. NOW!
Read the History.