In what two ways is the orbit of Triton unusual?
What will be an ideal response?
It is 20 degrees off the equator of Neptune, and revolves clockwise or in retrograde motion, the only big moon to behave this way.
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Arrange the following distances in order from smallest to largest. I. kilometer II. light-year III. yard IV. astronomical unit
a. I, II, III, IV b. IV, III, II, I c. III, I, IV, II d. II, I, IV, III e. III, I, II, IV
When scientists speak of a "sample return mission" to Mars, what do they mean?
A) a mission that scoops up rock on Mars and brings it to Earth B) a mission that provides an example of how other missions might work in the future C) a mission that lands humans on Mars D) a mission that reuses a spacecraft that has already been to Mars once
Which of the following is not due to tidal forces?
A) the synchronous rotation of the Moon around Earth B) the volcanos on Io (a moon of Jupiter) C) the rings of Saturn D) the grooved terrain of Enceladus (a moon of Saturn) E) the backward orbit of Triton (a moon of Neptune)
The rotation of the magnetic fields of the jovian planets is believed to also give us the rotation rate of the planet's core
Indicate whether the statement is true or false