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priority – n. something that is more important than other things and that needs to be done first
infrared – n. technical: producing or using rays of light that cannot be seen and that are longer than rays that produce red light
mirror – n. a piece of glass with metallic material on one side that produces an image of anything in front of it
pandemic – n. an occurrence in which a disease spreads very quickly and affects a large number of people
shield – n. an object used to protect something
refold – v. a process in which the sides of something are folded on top of each other to make it smaller
site – n. place where something happens
galaxy – n. a large group of stars from the same universe
Big Bang – n. the large explosion that many scientists believed created the universe
exoplanet – n. planets that orbit a star outside the solar system
