An aperture mask is a simple device for easier observing that increases the effective focal ratio of a telescope.

M.S. Ramaiah Vidyaniketan inaugurates Ramaiah Observatory, enhancing STEM education with state's first CBSE school observatory.

Save $48 on this Newtonian reflector telescope. One of the best budget telescopes, we rated the Celestron StarSense Explorer DX 130AZ as the best overall for under $500.

Astrophotographer Ron Brecher has captured a stunning deep sky image of the spiral galaxy M106, located 23.5 million light years away in the constellation Canes Venatici.

using a pioneering single-corner-cube reflector and a ground-based 1.2-meter aperture telescope system. Single-corner-cube reflector. [Photo provided to chinadaily.com.cn] The breakthrough ...

Brecher wrote on his website that he never believed that he would get into astrophotography, but became captivated by the pursuit after buying a 4.5-inch reflector telescope for his son ...

By Vincent DiFonzo, Editor-in-Chief Professor Ian Clarke began working for Gettysburg College in 1991, taking a job as an ...