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NASA is helping Stephen Hawking get a tiny ship to Alpha Centauri
NASA is helping Stephen Hawking and Russian venture capitalist Yuri Milner with the monumental task of getting a tiny probe to Alpha Centauri, the nearest star system to Earth. Project Starshot aims to propel a lightweight silicon "StarChip" to one-fifth the speed of light by hitting it with lasers from Earth, getting it to the star within 20 years. The space agency will help solve one of the thorniest problems -- the intense radiation of interstellar travel.
A tiny space pebble just put a huge dent in an ESA satellite
The European Space Agency's Copernicus Sentinel-1A satellite has new 40cm dent on one of its solar wings -- and it was caused by a tiny millimetre-size piece of space debris. The impact was discovered with the Sentinal-1A reported a slight power reduction last month. Onboard cameras quickly found the micrometeoroid impact, pictured above. Don't worry, the ESA says the satellite is fine, but the impact serves as a reminder: at orbital velocity, tiny objects can cause major damage.
LIGO team wins $3 million prize for gravitational wave discovery
The team of scientists and engineers who confirmed the existence of gravitational waves earlier this year have just nabbed a handsome $3 million reward as part of a special Breakthrough Prize in Fundamental Physics.
'Starshot' plan gets probes to Alpha Centauri in your lifetime
The concept of exploring other star systems with probes (and not just telescopes) has proven elusive for one good reason: even the fastest spacecraft would take 30,000 years just to reach Alpha Centauri, our closest neighboring star. However, investor and space project enthusiast Yuri Milner thinks it's possible to do better. He and physicist Stephen Hawking have launched Breakthrough Starshot, a $100 million program that aims to get probes to Alpha Centauri within a generation. If all goes well, the observers would reach the relatively close-by system (4.4 light years away) within 20 years of leaving Earth.
