Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

Just months after 9/11, strange messages started appearing across U.S. military computers: “Your security system is crap.” ...

Amazon says it has enough satellites in orbit to begin initial broadband service at mid-latitudes later this year.

Salman Rushdie, the most prominent literary figure to appear at the Tucson Festival of Books in its 17 years, spoke to about a thousand people Sunday from a festival stage at the University of Arizona ...

NASA's exoplanet-hunting spacecraft TESS has a new method for detecting worlds beyond the solar system, and it is thanks to ...

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Former Gov. Fife Symington says now that those strange lights that appeared over Phoenix a decade ago were from another world and that he had a close encounter with an alien craft on March 13, 1997.

A SpaceX Falcon 9 rocket launched 81 payloads to orbit from California early Tuesday morning (July 7), then landed on a ship ...

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