space girl comic
helium-3 is theoretically useful for nuclear fusion (instead of fission), a technology which still isn’t yet viable, and even if it becomes so, it might just be cheaper and easier to build a bunch of solar panels and batteries on earth than set up a mining operation on the moon. still, it makes for a neat science fiction concept, which is something i guess.
and yes, technically i just made a sequel to the comic “helium” called “helium-3”. hire me, microsoft.
a fun consequence of the phases thing is the closer the inner planets are to earth, the less of them is visible. while venus, the closer of the two, is at its brightest during its crescent phase when it’s near earth, mercury is actually at its brightest during its full phase, when its furthest from earth. this makes mercury the only planet in the solar system to technically get brighter the further away from us it is, which is pretty weird.