This handy application of lcms is used by astronomers. all the planets in our solar system revolve around the sun. the planets occasionally line up together in their journeys, as shown in the illustration. the chart shows the time it takes each planet to make one trip around the sun. now, imagine that the planets earth, mars, jupiter, saturn, uranus, and neptune aligned last night. how many years will pass before this happens again? (hint—find the lcm of the planets’ revolution times.) solar system planet revolution time earth 1 year mars 2 years jupiter 12 years saturn 30 years uranus 84 years neptune 165 years