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Search resuls for: "Amy Mainzer"


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CNN —The NASA Lucy mission is about to have its first encounter with a space rock. The spacecraft, launched in October 2021, will fly by the small asteroid Dinkinesh on Wednesday. Dinkinesh is about half a mile (1 kilometer) wide and is situated in the main asteroid belt between the orbits of Mars and Jupiter. Each of the asteroids Lucy will fly by differ in size and color. These are some of the asteroids that the Lucy mission will fly by over the next 12 years.
Persons: NASA Lucy, Lucy, , Hal Levison, Dinkinesh, REx — Lucy, Mark Effertz, Amy Mainzer, Organizations: CNN, NASA, Lincoln, Asteroid Research, US Air Force, Massachusetts Institute of Technology, Southwest Research Institute, Dinkinesh, JPL, Caltech, Lockheed Martin, University of Arizona, Trojans Locations: LINEAR, San Antonio, Jupiter, Littleton , Colorado, Ethiopia
NASA for years has prioritized detecting asteroids much bigger and more existentially threatening than 2023 BU, the small space rock that streaked by 2,200 miles from the Earth's surface, closer than some satellites. If bound for Earth, it would have been pulverized in the atmosphere, with only small fragments possibly reaching land. But 2023 BU sits on the smaller end of a size group, asteroids 5-to-50 meters in diameter, that also includes those as big as an Olympic swimming pool. But with current capabilities, astronomers can't see when such a rock targets Earth until days prior. The successful demonstration, called the Double Asteroid Redirection Test (DART), affirmed for the first time a method of planetary defense.
The Double Asteroid Redirection Test (DART) is aiming for an asteroid called Dimorphos, which is orbiting a giant asteroid called Didymos. To date, scientists have only identified 40% of city-killer asteroids orbiting near Earth, NASA estimates. Mainzer has been working on a space telescope called Near-Earth Object (NEO) Surveyor, which is designed to fulfill that goal. The asteroid-spying telescope got a huge budgetary boost in 2022An artist's concept of the NEO Surveyor space telescope. If the DART impact goes according to plan on Monday, NASA will be better equipped to divert any Earth-bound asteroid NEO Surveyor might discover.
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