comscore Stephen Hawking, Mark Zuckerberg to build interstellar spaceships
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Stephen Hawking, Mark Zuckerberg to build interstellar spaceships

Zuckerberg, Stephen Hawking and Yuri Milner have raised $100 million to build nano spaceships that can travel at 20 percent lightspeed.

  • Updated: April 13, 2016 10:45 AM IST
breakthrough-starshot-project

World-renowned British astrophysicist Stephen Hawking on Tuesday teamed up with Russian billionaire Yuri Milner and Facebook founder Mark Zuckerberg in a $100 million effort to make tiny spaceships capable of interstellar space travel. Hawking and Milner made the joint announcement at a press conference held at One World Observatory in New York City on Tuesday, Xinhua reported. The project, dubbed “Breakthrough Starshot,” is a research and engineering program that aims to build laser beam propelled “nanocrafts” that can travel at 20 percent of lightspeed — more than 1,000 times faster than current fastest spacecraft. Also Read - National Science Day: Top 5 AR apps available on Apple's App Store to learn science

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According to Milner, once the “nanocrafts” are built, they could reach Alpha Centauri, a star 4.37 light-years away, approximately 20 years in a fly-by mission. Alpha Centauri is one of the closest star systems to the solar system and the current fastest spacecraft would have to spend 30,000 years to get there. The “nanocrafts” are gram-scale robotic spacecrafts consisting of two main parts: a computer CPU sized “StarChip” and a “Lightsail” made with meta materials no more than a few hundred atoms thick.

Although weighing just a few grams, the “StarChip” is a fully functional space probe, which carries various equipment including cameras, navigation and communication.

“The ‘StarChip’ can be mass-produced at the cost of an iPhone,” Milner said.

The “nanocrafts” can then be propelled into space by a powerful laser beam, which according to Avi Loeb, a theoretical physicist and panelist at the news conference, will carry a power of 100 gigawatt.

“This is the power needed to lift off a space shuttle,” Loeb said.

Milner and the scientists believe that with the rising power and falling costs of lasers, the entire process is practical within a couple of years.

ALSO READ: Russian billionaire Yuri Milner announces $100 million fund to look for aliens

“Fifteen years ago, it would not have made sense to make this investment. Now we have looked at the numbers, and it does,” Milner said.

The project was part of the Breakthrough Initiatives first launched in July 2015 by Hawking and Milner, including a series of research plans to scan the 100 galaxies closest to the Milky Way in search for aliens. “Starshot” is its newest endeavor. Hawking believes that human’s innate sense to transcend limits is the driving force behind the project. “Gravity pins us to the ground, but I just flew to America.”

While one cannot hear the joking tone through Hawking’s voice synthesizer, his humour had been easily received. What the scientists are looking for is not just reaching Alpha Centauri, but what can be learned during the efforts.

“A lot of science will be learned by the process of going through this, making this happen,” said panelist Mae Jemison, a former NASA astronaut.

“There is big task ahead, there’s a big leap in getting something of a micro size to go at some percentage of the speed of light. That will have all kinds of reverberations.”

Tuesday also marked the 55th anniversary of the first human space flight by Russian cosmonaut Yuri Gagarin.

“Today we commit to this next great leap into the cosmos because we are human and our nature is to fly,” Hawking said.

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  • Published Date: April 13, 2016 10:40 AM IST
  • Updated Date: April 13, 2016 10:45 AM IST



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