![Radio signal from Nasa's Voyager 1 as it travels outside our solar system is seen from Earth | Daily Mail Online Radio signal from Nasa's Voyager 1 as it travels outside our solar system is seen from Earth | Daily Mail Online](https://i.dailymail.co.uk/i/pix/scaled/2013/09/17/article-2422691-1BDEEDFA000005DC-120_636x382.jpg)
Radio signal from Nasa's Voyager 1 as it travels outside our solar system is seen from Earth | Daily Mail Online
How can Voyager send a signal strong enough for us to receive, in spite of its enormous distance from us? And how can it have the power to do so more than
![Radio signal from Nasa's Voyager 1 as it travels outside our solar system is seen from Earth | Daily Mail Online Radio signal from Nasa's Voyager 1 as it travels outside our solar system is seen from Earth | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/06/28/article-2350411-1A8C3161000005DC-839_634x348.jpg)