大气层外极薄的微粒层会撞击进入减慢轨道物体的速度。
A whisper-thin veil of molecules at the atmosphere's outer reaches bumps into and slows down orbiting objects.
2008年1月21日，以色列的首颗24小时、全天候、高分辨率雷达卫星TechSAR由印度的极轨卫星运载火箭(PSLV)送入轨道。
Israel's first 24-hour, all-weather, high-resolution radar satellite, dubbed TechSAR, was inserted into orbit Jan. 21 by an Indian Polar satellite Launch Vehicle (PSLV).
现在你的眼睛就是在模拟地球处在它轨道的两极而且你的手指就是临近的恒星。
Your eyes are simulating the position of the Earth at the extremes of its orbit and your finger, the nearby star.
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