The “Lucy” mission, which aims to visit the Trojan constellation, was completed in the final stage of development and was approved by NASA. Led by the Southwest Research Institute (SwRI), Lucy will launch in October 2021 to visit one object in the main asteroid belt and seven objects in the Trojan asteroid cluster. < / P > < p > NASA approved this phase after an independent review of the spacecraft, instrumentation, schedule, and budget. This milestone is called “key decision point d (kdp-d)” and is a formal transition from final design and manufacturing completion (phase C) to system delivery, testing, assembly and integration (phase d). In this stage, the researchers completed the design and manufacture of the spacecraft, integrated the instruments into the spacecraft and carried out the test. The spacecraft will be delivered to NASA’s Kennedy Space Center in Florida next summer for integration with the launch vehicle. < / P > < p > at present, the oxidant tank has been integrated with the spacecraft. After the completion of all spacecraft assembly and testing work, we will wait for the arrival of the launch window in October 2021. It is reported that Lucy will travel 6.4 billion kilometers in the solar system for 12 years. It will explore eight asteroids and become the largest spacecraft to explore asteroids at a time. The spacecraft will meet the first target asteroid, an asteroid in the main asteroid belt, in 2025. Lucy will arrive at the first of seven Trojan asteroids in 2027, and will fly the last pair of Trojan asteroids in 2033. The Trojan asteroid cluster is a large group of ancient asteroids that share the orbit with Jupiter and orbit the sun together. “Lucy” is named after a fossil Australopithecus found in Ethiopia in 1974. Lucy, a female, lived 3.2 million years ago, is considered to be the first human to walk upright and the earliest known ancestor of humans. The name also highlights scientists’ eagerness: they hope that the study of the eight asteroids will further reveal the earliest “appearance” of the solar system. Apple extends AppleCare + purchase period: users can decide within 60 days

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