John P. Berdahl, MD, a surgeon at Vance Thompson Vision and a professor at the University of South Dakota, spoke on the lens ...

After Christmas dinner in 2021, our family was glued to the television, watching the nail-biting launch of NASA's US$10 ...

Over on YouTube [Applied Science] shows us how to make an f/0.38 camera lens using an oil immersion microscope objective. The f-number of a lens indicates how well it will perform in low-light. To ...

Predicting when and where the Northern Lights will be visible is a challenging game and can partially be predicted by ...

Nikon has simplified its lens names for its mirrorless lenses, but the company still uses a lot of special abbreviations and ...

A comet discovered earlier this year, now just bright enough to be visible to the naked eye, is poised to be among the top ...

Diagnosing cancer and selecting the appropriate therapy depend crucially on how well experts understand the processes in ...

Comets don't visit often — here's how to capture comet Lemmon, comet 3I/ATLAS, on your camera as they dance across our skies.

This summer, I came across two recently reprinted series of literary crime fiction originally published around the millennium ...

Proponents suggest supervisors could gain political capital by passing the ordinance instead of sending it to voters. If the measure passes, the county's registrar of voters anticipates legal ...