U.S.-based German Precision Optics (GPO) has introduced a Super Compact line of its signature Centuri riflescope, boasting a generous magnification range and the features it takes to be successful at ...

If you spot a moving object in the sky, you want to follow up on it. This allows you to confirm that the object is indeed real and not an artifact of the observing device, tracking its motion over ...

Researchers in Germany have now directly observed this wobble with the highest precision yet thanks to a large ring laser gyroscope they developed for this purpose. The instrument, which is located in ...