NASA news: New Horizons closes in on asteroid more than FOUR BILLION miles from Earth NASA’S New Horizons space craft is embarking on its most ambitious missions to date as it closes in on an icy asteroid more than 4 BILLION miles from Earth. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Joseph L. Birman, Physicist and Humanitarian, Dies at 89REVEALED: Zombie outbreak IS possible - and only needs evolution of ONE parasite to happenMAJOR STAR DISCOVERY: Astronomers stunned to find 20 TIMES MORE galaxies than thoughtA New Zika Zone in Miami, but No Reason to Panic, Scientists SayPart man part ROBOT - Paralysed man able to feel touch again through ROBOTIC handMission ExoMars: Europe's first Mars landing – Latest updates, tracking, map, path