When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ...

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A study recently submitted to The Astronomical Journal continues to search for the elusive Planet Nine (also called Planet X), which is a hypothetical planet that potentially orbits in the outer ...

NASA plans to build larger solar sails that can generate more thrust. A new unique composite carbon fiber booms, the ACS3 system has the potential to support sails as large as 2,000 square meters, or ...