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NASA’s Hubble Maps Halo on Andromeda


NASA’s Hubble Maps Halo on Andromeda
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Scientists at the National Aeronautics and Space Administration mapped a giant cloud of gas, called a halo, surrounding Earth's galactic neighbor, Andromeda. For Science in a Minute, Rick Panteleo reports that the Hubble Space Telescope found that the halo is composed of two separate layers of gas.

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