Buying a telescope is a big step, especially if you’re not sure what all those terms — f/ratio, magnification, go-to — mean. So, to eliminate confusion and make sure you understand what you’re buying, ...

For space fans, June has something extra to enjoy, as NASA recently released “Cosmic Dawn,” a new “intimate access” documentary all about designing and assembling the James Webb Space Telescope. The ...

Astronomers worldwide are turning their focus to a rare and baffling cosmic visitor: interstellar object 3I/ATLAS. First detected in early July as it sped toward the Sun from deep space, the object is ...