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alien – n. a creature from somewhere other than Earth
ambitious – adj. something that will take a lot of time and effort and is difficult to achieve
gram-scale wafer – n. a small object that weighs about a gram
photon thrusters – n. a device that helps move a spacecraft forward
transcend – v. going beyond or rising above normal limits
void – adj. empty
on the contrary – phrase. the opposite
beam -n. a line of light
postage stamp – n. a small square on a letter for payment to mail
commit – v. to say you will definitely do something
cosmos – n. the system that is the universe
timeline - n. a schedule of events
