has the story. spaceis space is vast and full of wonder. countless stars, cou ntless wonder. countless stars, countless planners and cou ntless pla nners a nd cou ntless countless planners and countless numbers of rocks streaking through the cosmos. earth has i was been a potential target, exposed and vulnerable, until now. this is a computer simulation of dart, the double asteroid redirection test, which could be a first line of defence is one of those clumps of rock come heading our way. tt clumps of rock come heading our wa . . , clumps of rock come heading our wa , ., , , clumps of rock come heading our wa . . , , ., , , way. it has given us a set up where we way. it has given us a set up where we have way. it has given us a set up where we have an way. it has given us a set up where we have an asteroid l way. it has given us a set up i where we have an asteroid that is approaching close to earth so that we can observe from our earth based observatories but this is a test. t