Venus was the first planet to have its motions plotted across the sky, as early as the second millennium BC and spins very slowly on its axis, it spins in the opposite direction to the other planets.
Xem thêmIt comprises a grid of streets with one axis parallel to the river and the other axis of streets and alleys set at right angles to it.
Xem thêmMars has seasons like Earth because it tilts on its axis.
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