Most things in this world have their good points and their not-so-good points, and this is certainly true of “The Copenhagen ...

For this video, I'll be exploring some of the science behind hypergolic liquid propelled rockets. As a fuel, I used aniline, and as an oxidizer, I used nitric acid that I made in a previous video.

How can artificial intelligence (AI) be used to locate lunar pits and skylights, which are surface depressions and openings, respectively, that serve as entrances to lava caves and lava tubes? This is ...