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But science fiction is becoming science fact. for the first time, nasa is sending up a spacecraft to knock an asteroid off course. this one is not a danger to the earth, but the dart mission as a trial of technology for the future. normally when we are talking about a mission to go to space, we are going to explore some new world, but in this case we are literally going to crash a spaceship into an asteroid and change the direction and speed at which it moves through space, and we are doing that to basically test the technique to save the planet if there was ever a killer asteroid coming towar...

Mission as a trial of technology for the future. normally when we are talking about a mission to go to space, we are going to explore some new world, but in this case we are literally going to crash a spaceship into an asteroid and change the direction and speed at which it moves through space, and we are doing that to basically test the technique to save the planet if there was ever a killer asteroid coming towards earth. nasa is targeting a small asteroid called dimorphos, which is orbiting around a larger space rock. the spacecraft travelling at around 13,000 miles an hour will fly into the...

Of technology for the future. typically when we are talking about a mission to go to space, we are going to explore some new world, but in this case we are literally going to crash a spaceship into an asteroid and change the direction and speed at which it moves through space, and we are doing that to basically test the technique to save the planet if there was ever a killer asteroid coming towards earth. nasa is targeting a small asteroid called dimorphos, which is orbiting around a larger space rock. the spacecraft travelling at around 13,000 miles an hour will fly into the small asteroid le...

Save the planet if there was ever a killer asteroid coming towards earth. nasa is targeting a small asteroid called dimorphos, which is orbiting around a larger space rock. the spacecraft travelling at around 13,000 miles an hour will fly into the small asteroid leaving an impact crater up to 20 metres wide. but this should also give the rock a kick, which will speed up its orbit, and this can be monitored from the earth to see if it has worked. 0nboard is also a mini satellite that will film the crash. even a small nudge can make a big difference to an asteroid's path, and that could be vital...

But this should also give the rock a kick, which will speed up its orbit, and this can be monitored from the earth to see if it has worked. 0nboard is also a mini satellite that will film the crash. even a small nudge can make a big difference to an asteroid's path, and that could be vital. a 160—metre—wide rock like dimorphos could devastate populous areas, but smaller ones are a problem too. anything bigger than the 20 metre asteroid that broke up over russia in 2013 and injured hundreds of people are a concern. even the smaller objects can cause quite a lot of damage. a 25—metre aster...