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solar – adj. related to the sun
journal – n. a magazine that reports on things of special interest to a group of people
author – n. writer
dwarf – adj. related to or involving something that is much smaller than the usual size
impact – v. formal to hit (something) with great force
sufficient – adj. somewhat formal having or providing as much as is needed
core – n. the central or most important part of something
ingredient – n. a part or piece of something
