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Stories, updates, insights, and original analysis from The Planetary Society.
What is comet 3I/ATLAS?
A roundup of key facts and surprising discoveries about the third known interstellar object.
Where do 3I/ATLAS and other interstellar visitors come from?
Interstellar interlopers like 'Oumuamua and 3I/ATLAS could be our best bet at exploring other stars.
ESA to Launch Comet Interceptor Mission in 2028
With Comet Interceptor, ESA plans to meet a comet on its first trip into the inner solar system. The mission was selected yesterday after a fast-track proposal process and will be developed on a rapid (for ESA) timeline, with a launch planned for 2028.
OSIRIS-REx and New Horizons catch first sight of their targets
Both OSIRIS-REx and New Horizons achieved first light on their still-distant targets this week. Between now and the end of 2018, Bennu and 2014 MU69 will turn from points of light into places.



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