21-09-25 many moons ago 这是很久以前的一个非常文学化的表达。 (literary) a very long time ago 例句： All that happened many moons ago. 这一切都发生在很久以前。...

12-10-17 NASA's New Horizons spacecraft is now almost seven years into its 9.5-year journey across the solar system to explore Pluto and its system of moons. Just over two years from now, in January 2015, New Horizons will begin encounter operations, which w...

11-04-21 Data from NASA's Cassini spacecraft have revealed that Enceladus, one of Saturn's diminutive（小型的） moons, is linked to Saturn by powerful electrical currents - beams of electrons that flow back and forth between the planet and moon. The finding...