A secretive Space Force ship returned to Earth after spending over a year in orbit conducting mysterious experiments.

Why it matters: From monitoring U.S. borders to mapping oil spills to sinking Russian ships in the Black Sea ... A Seasats ...

The unmanned Boeing-made aircraft landed at Vandenberg ... in 2023 in what was its seventh mission. The aircraft is solar-powered, reusable and operated remotely. Space.com noted that most of ...