The DART spacecraft, which launched on Wednesday morning, is now hurtling towards an asteroid at 15,000 miles per hour where it is due to arrive in late 2022.
arrives at its target asteroid in September or October, 2022, it will have traveled 6.8 million miles from Earth.
This won't make any difference to life on Earth as the asteroid isn't heading towards us. But it will tell scientists whether it is possible to knock an asteroid off course if needed. The DART spacecraft will travel using a solar-powered electric thruster. Known as the NEXT-C ion propulsion system, it is fueled by xenon and works by accelerating ions into jets that are directed out of the back of the spacecraft.
The DART spacecraft forms a box shape that is 3.9 by 4.3 by 4.3 feet in size, though it also has other parts attached to it. The solar panels, for instance, are 27.9 feet long.
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