Hayabusa 2

A new-and-improved successor to the troubled Japanese spacecraft Hayabusa - which finally returned a capsule to Earth earlier this year - could launch as soon as 2014. Hayabusa 2 would then be expected to return in 2020, bearing clues to the origin of life on Earth.Last week, the Japan Aerospace Exploration Agency (JAXA) got the go-ahead from the government to begin development of Hayabusa 2, which will cost an estimated 164 billion yen ($2 billion).