Which word has the opposite meaning of approximately?
Which of these items would best help a person do a calculation?
Diameter is the distance
Something that is astronomical has to do with
What does the word orbit mean?
What does the word spheres mean?
Which word defines: rules used to measure; set standards?
Which word has almost the same meaning as the word evaluate?
What is the main difference between the planets in our solar system?
Most scientists think the world began as a
What finding made astronomers begin to doubt that Pluto was a planet?
According to the selection, what do the Planet Finders use to look for planets?
As defined by the IAU, what category of celestial bodies orbits the sun, is round, and is not a moon or satellite of another planet?