The Breakthrough Starshot is an effort backed by US$100 million from Russian investor Yuri Milner to vastly accelerate research and development of an interstellar space probe.

Leaders of the mission plan to start funding technology-development projects within months, with the aim of launching a fleet of tiny, laser-propelled probes in the next 20 years. The effort would ultimately cost about $10 billion, leaders hope, and take another 20 years to reach Alpha Centauri.

The first truly challenging step in any mission such as Breakthrough Starshot is to accelerate the spacecraft to interstellar velocities.

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To learn more about Breakthrough Starshot, visit http://breakthroughinitiatives.org.

On the fifty-fifth anniversary of Yuri Gagarin’s great leap into space, April 12, 2016, Yuri Milner was joined by Stephen Hawking at New York’s One World Observatory to announce Breakthrough Starshot, which will lay the foundations for humanity’s next great leap: to the stars. It was also announced that Mark Zuckerberg joined the board of the initiative.

Breakthrough Starshot is a $100 million research and development program, aiming to establish proof of concept for a ‘nanocraft’ – a fully functional space probe at gram-scale weight – driven by a light beam. A spacecraft like this, equipped with a lightsail, has the potential to reach twenty percent of the speed of light – or 100 million miles an hour. At that speed, it could reach Alpha Centauri, our nearest star system, in around 20 years. Using the fastest conventional rocket propulsion system available, the same journey would take tens of thousands of years.

This new scientific initiative is committed to international collaboration, open access and open data. It aims to represent all of humanity as one world, stepping out into the galaxy within a generation.