years around the sun造句

• An example of this is thought to be Comet C / 1980 E1, which was shifted from a predicted orbit of 7.1 million years around the Sun, to a hyperbolic trajectory, after a 1980 close pass by the planet Jupiter.
• The NASA scientists reminded us that for all we don't know about the universe, when it comes to the basics, earthlings have it down cold : Put the equations for the trajectory to an asteroid into a computer, plot a three-year course, whip the spacecraft around the Earth to give it a gravity boost _ and when you miss your tiny target the first time, follow it for another year around the Sun before carefully moving in for final contact.