Science, Maths & Technology
What danger do asteroids pose to life on earth?
...by larger asteroids. So there is no need (yet) to start stockpiling baked beans and bottled water against our imminent demise by asteroid attack. The 50,000 tonnes of space material that hits Earth each year falls mainly as dust grains less than half a millimetre across. And given that we are all still here (at the time of writing…), it poses no threat to humanity....