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neutron star – n. a very dense object in space that consists of closely packed neutrons and is produced by the collapse of a much larger star
gamma ray – n. a ray that is like an X-ray but of higher energy and that is given off especially by a radioactive substance
gravitational wave – n. a very small ripple or movements through space time in the universe.
spiral – n. a circular curving line that goes around a central point while getting closer to or farther away from it
watch – n. a device that shows what time it is and that you wear on your wrist or carry in a pocket
leap – v. to jump from a surface
