noun - the gases surrounding a planet

noun - a book with maps

noun - a scientist who studies the stars

noun - the study of the stars and the Universe

noun - a person who travels into space

noun - the study of the efects of stars on people's lives

noun - small bodies (smaller than planets) moving through the solar system between Mars and Jupiter

adjective - sleeping

adjective - feeling guilty and embarassed because you have done something bad

noun - a tall leaf tree with hard wood that grows in cold countries

conjunction - while, when

noun - a piece of text in a newspaper or magazine

noun - a long sharp object shot from a bow

noun - a long pointed mark that shows you the way

verb - (of police) to take somebody prisoner in order to ask them about a crime