first planetary defence test was a success and i think we can clap to that, everyone. so yeah, i think the earthlings should sleep better and definitely i will. working here, we definitely will sleep better. ,, ., here, we definitely will sleep better. , , ., better. the mission, called dart, began better. the mission, called dart, began last - better. the mission, called dart, began last year, - better. the mission, called| dart, began last year, with better. the mission, called - dart, began last year, with the spacecraft starting its epic journey to its destination. the target, a twin asteroid system. a larger space rock is orbited by a smaller space rock that is about 150 metres, that is about 500 feet across. the spacecraft travelling at 14,000 miles an hour crashes into one of them, giving the asteroid kick. this changes its speed byjust a fraction, about a millimetre per second. fraction, about a millimetre persecond. but fraction, about a millimetre per second. but this is en
decription of haiti after weeks of protests at the economic and fuel supply crises. and work begins to remove the tens of thousands of floral tributes left to honour the queen, in central london. welcome to our viewers on pbs in america and around the globe. within the last few hours, nasa has successfully managed to test the world s first planetary defence system by deliberately crashing a spacecraft into an asteroid. the dart mission is the first ever attempt to change the course of a large object roughly the size of a football stadium. the probe is thought to have hit the asteroid targetjust i7 metres off the bullseye. a live camera relayed