NASA's asteroid-deflection DART spacecraft is close to planned impact with its target

Credit: NASA/Johns Hopkins APL/Steve Gribben

NASA's asteroid-deflection DART spacecraft inched closer to a planned impact with its target on Monday in a test of the world's first planetary defense system.

It took place ten months before its launch

Credit: NASA/Johns Hopkins APL/Steve Gribben

Dart, launched by a SpaceX rocket in November 2021, made most of its journey under the guidance of NASA flight directors

which was designed to prevent a doomsday collision with earth.

The cube-shaped "impactor" vehicle, roughly shaped like a vending machine with two rectangular solar arrays

Credit: NASA/Johns Hopkins APL/Steve Gribben

DART's astronomical target is an asteroid "Moonlight" of about 560 feet (170 m) in diameter that orbits a parent asteroid five times larger.

This is the world's first attempt to change the motion of an asteroid, or a celestial body.

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