Space agencies conducting largest ever planetary defense drill with 3I/ATLAS approaching

With 3I/ATLAS days away from making its closest approach to Earth, agencies worldwide are conducting the largest and most extensive planetary defense drill — with the goal of protecting ourselves against future threats from beyond.
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Interstellar comet 3I/ATLAS caught on camera in new images from Hubble Space Telescope and JUICE Jupiter probe

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another solar system, following 1I/'Oumuamua in 2017 and comet 2I/Borisov in 2019.
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Interstellar comet to make its closest approach to Earth this week, how to see it

It's only the third object in history from outside our solar system to be discovered cruising through our area of space.
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