Question | Answer |
what bodies make up the solar system? | planets,moons, sun and other small objects. |
how is the solar system being explored today? | mars rover, international space station,hubble telescope. |
what is Galileo known for? | Italian scientist who proved the heliocentric model to b true. |
what is Ptolemy known for? | Egyptian scientist who modified the original geocentric model. |
what is Aristarchus known for? | Greek astronomer who developed the heliocentric model |
what is Copernicus known for? | polish scientist who revived the heliocentric model. |
What are the three major surface features of the moon? | maria, highlands and craters |
how did the moon most likely form? | after an enormous collision early in earths history |
what is the nebular theory? | states that the solar system from a rotating cloud of dust and gas. |
what are planetesimals? | asteroid-like bodies the grew by accretion to form our planets. |
what is a spectrograph used for? | To measure the temperature of a star. |
how can astronomers determine the various elements that make up a star? | most stars have |