Miniaturized lab-on-a-chip for real-time chemical analysis of liquids

in the late 90s, NASA's website had a simple "Build Your Own Space Telescope" simulator, letting you tweak the JWST (then called NGST) to conduct as much scientific research as possible under budget, time and weight contraints.

Simple Simulation Accidentally Leads to Mysterious X-Shaped Galaxy for First Time

The Reason Kids Hate Long Car Rides Has Everything to Do With Time And Space