From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for stargazing and astronomy. When you purchase through links on our site, we may earn ...

Larger aperture telescopes gather more light, showing fainter objects. Focal length affects magnification; longer lengths show more detail. Reflectors are affordable and good for deep-space viewing. A ...

Michael J. I. Brown receives research funding from the Australian Research Council and Monash University. While the unaided eye or binoculars can reveal much of the night sky, a telescope reveals so ...