The rockets have caused concern in the past due to their uncontrolled reentry to Earth. Long March 5 rockets are the workhorses of China's space program, completing most of the deliveries to China's space station and launching Chinese probes to Mars and the moon. Osiris-Rex is expected to return to Earth with its spoils in 2023. Osiris-Rex arrived above Bennu in October 2020, floating above it for long enough to collect loose pieces from its surface with its 10-foot (3 m) arm. NASA already sent a spacecraft, called Osiris-Rex, in pursuit of samples from the asteroid. The ESA's mission, Hera, will then monitor how DART has budged the moonlet off-course.īennu is a B-type asteroid, which means that it contains high amounts of carbon and, potentially, many of the primordial molecules present when life emerged on Earth. Once there, the NASA spacecraft will slam into Didymos's moonlet - a rock in orbit around the asteroid. The DART mission (Double Asteroid Redirection) will send a spacecraft to arrive a year later at the 7 million mile (11 million kilometer) distant Didymos asteroid system. NASA and the ESA (European Space Agency) will be the first to test a novel asteroid nudging method in two joint missions launching November 24 of this year. NASA simulations suggest that 34-53 blows from HAMMER spacecraft, launched 10 years before Bennu collides with Earth, would be needed to shift the asteroid. The NASA plan, called Hypervelocity Asteroid Mitigation Mission for Emergency Response (HAMMER), would send a fleet of 30-foot-tall (9 meters) spacecraft with battering rams to bump the asteroid off course. The Chinese plan follows a similar, yet slightly more costly, past proposal made by the United States. The Chinese scientists' plan would sidestep the need to stop the asteroid by more direct, yet riskier, means - like the atomic bomb method popularized by Bruce Willis in the film "Armageddon." In reality, nuking the incoming space rock would break it into multiple smaller chunks that could still collide with Earth, leading to devastating consequences. Crash! 10 biggest impact craters on Earth Here's what NASA's Opportunity rover saw before 'lights out' 10 interesting places in the solar system we'd like to visit
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