Find out about the chemical elements that surround the supermassive black hole in our Milky Way galaxy, how to use a solar telescope, the famous NGC6397 globular cluster and more.

This presentation will guide your selection of telescope eyepieces, suitable for amateur astronomers.

5th March 1616 On this day in 1616 the Roman Catholic Church adds "" (On the Revolutions of the Heavenly Spheres) by Nicolaus...