如果无线电波真的能够穿透宇宙空间的话，它有什么问题呢？
If the radio waves are so good at getting through the universe, what's the problem?
无线电波广泛存在于自然界中，从声波、光波到空间中的宇宙射线。
Radio waves exist in nature, from sound and light to cosmic rays in space.
卫星将空间太阳能产生的电能转化成无线电波，传送到地面接收站。
The satellite would then convert the energy into radio waves and beam them down to a receiving station on Earth.
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