After more than a decade of mapping the stars, the European spacecraft will shut down on Thursday. But its legacy lives on.

In the vibrant yet fragile waters of the Gulf of Oman, spectacular phytoplankton blooms – visible even from space – unfold in ...

Observers across eastern North America and much of Europe will have front-row seats to the striking partial solar eclipse on March 29. Here's what to expect.

Scientists in China have transmitted encrypted images a record 12,900 kilometers, paving the way for quantum messaging ...

Satellite company Maxar is building a detailed digital Earth that can help robots orient themselves in the face of GPS ...