Photograph: Tyler JonesNASA performed a few experiments following the 1960s and ’70s moon landing missions that brought back lunar material, but those were nothing like what Paul and Ferl attempted. “A small amount of regolith material…
How much do we need humans in space? How much do we want them there? Astronauts embody the triumph of human imagination and engineering. Their efforts shed light on the possibilities and problems posed by travel beyond our nurturing…
NASA engineers hope to have their massive moon-bound Space Launch System ready for liftoff in a couple of months, but so far they’ve encountered some bumps in the road. On March 17, NASA rolled the world's most powerful rocket out onto…
There are currently about
440 fission reactors operating worldwide, which together can generate about 400 gigawatts of power with zero carbon emissions. Yet these fission plants, for all their value, have considerable downsides. The…