Alien attacks \n\n
Alien attacks and death tolls. Independence Day and flying planes up the butt.
\n\n Water in spaaaaaaace \n\nLiquid water and the Goldilocks Zone. Frozen water all over the galaxy. Water vapor too!
\n\n Dying Planets \n\nSchiaparelli, Percival \xa0Lowell and the Martian \u201ccanals.\u201d
\n\n Insectoid Aliens \n\nAnatomy surprisingly like that of our tiny earth-based insects. Tool use? Telepathy? Queens controlling drones, but\xa0directly, apparently.
\n\n Alien Communication \n\nDistance and lightspeed considerations in trying to communicate with aliens who\xa0may\xa0pose an existential threat to humanity.
\n\n Deciphering\xa0Speeds and Distances \n\n28 days. Distances to other stars.
\n\n Space Combat Command \n\nAction per minute. Starcraft and command delegation.
\n\n Doomsday Weapons \n\nVery very expensive weapons and the meaning of a dollar.
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