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Space Science #1
Question | Answer |
---|---|
astonomer | people who study objects in space |
big bang theory | a rapid expansion of space in a tiny mass, about 13.7 billion years ago |
calestial bodies | a term for all the objects in the sky |
cosmological red shift | when wave lengths are stretched |
electromagnetic radiation | energy that is carried ir radiated in waves |
red shift | receding from earth |
spectroscope | an instrament that separates light into it's basic component colours |
spectrum | a pattern of colours |
radiation | transformation of energy to waves |
Edwin Hubble | universe has many galaxies and galaxies seem to be moving away |
doppler affect | compressing of energy waves on an object and stretches them when they move farther away |
electromagnetic spectrum | types of energy that is moved by waves |