在火星和木星的轨道间分布着小行星带，之中有一颗矮行星谷神星。
Between the orbits of Mars and Jupiter lies the asteroid belt, which includes the dwarf planet Ceres.
哈勃望远镜锁定P/2010 A2时，这个物体正在距地球约九千万英里的火星和木星之间主要小行星带盘旋。
The object, known as P/2010 A2, was circling about 90 million miles from Earth inthe main asteroid belt between Mars and Jupiter when it was spotted bythe Hubble Space Telescope
2011年7月16号，NASA的曙光探测器进入位于火星和木星之间的小行星带，成为进入这一地带的第一个探测器。
ScienceDaily (July 18, 2011) -nasa's Dawn spacecraft on July 16, 2011 became the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter.
应用推荐