It's the last day of Amazon Prime Day, and our editors are recommending the best Prime Day deals on products they actually ...

On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth ...

With the fast development of low earth orbit (LEO) enhanced global navigation satellite system (LeGNSS), there is huge demand in LEO real-time precise orbit determination. Real-time service from ...

The scheduling of agile Earth observation satellites is to select a subset of candidate targets each associated with a profit during their visible time windows in order to maximize the collected ...

Time keeps on slipping - literally. Why today might have been the shortest day you’ll ever experience - Earth is projected to ...

The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.