Nothing can preventit now. Japan's Hayabusa spacecraft is heading home afterits seven-year round-trip to the asteroidItokawa. A final trajectory correction has been performed and the spacecraft is on target to hit theatmosphere of Earth above Australia shortly before midnight (local time; about 1400 GMT). I wroteearlier in the week about some of the woes Hayabusa experienced asit tried to gr
A capsule thought to contain the first samples grabbed from the surface of an asteroid has returned to Earth. TheJapanese Hayabusa container hit thetop of theatmospherejust after 1350 GMT, producing a bright fireball over southern Australia.It had a shield to cope with the heat of re-entry and a parachute for the final drop to the ground. A recovery team laterreported they had identified the

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