By the time a spacecraft's radio signal reaches Earth from the outer Solar System, it is no longer a...
NASA’s Deep Space Network can detect a signal as weak as a billionth of a billionth of a watt from spacecraft billions of kilometres away — using 70-metre dishes to pull a technological whisper out of the noise of space
By the time a spacecraft's radio signal reaches Earth from the outer Solar System, it is no longer a broadcast in any everyday sense. It is closer to a.
Author: Space Daily
Read Original Article