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| Three of the world’s richest men are hoping to be the first to find alien life. Yuri Milner (centre), Stephen Hawking and Mark Zuckerberg have revealed exclusively to MailOnline that they will be listening in to signals from 'Earth 2.0' |
- The billionaires plan to look for signals on Proxima b, 4 light years away
- The rocky planet is believed to have the right conditions to harbour life
- Future spacecraft could travel to the planet within the next few decades
- Breakthrough Listen project will using the Parkes Observatory in Australia
- Stephen Hawking has warned we should find aliens before they find us
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| Proxima b is just four light years from Earth - close enough to be reached by future space missions. Pictured is an artist's impression of the surface of the planet, looking out onto its star and the double star Alpha Centauri |