Coronado's Personal Solar Telescope--PST for short--is a great way to get started with solar astronomy. The telescope is small, portable, and inexpensive--but it is a big performer. Looking through the eyepiece of a PST you can see vast dark solar filaments, red glowing prominences, and seething active regions where sunspots break through the sun's surface.

At the heart of the PST is a Coronado "H-alpha" filter tuned to the red glow of solar hydrogen. It reveals phenomena invisible to ordinary white-light telescopes and, best of all, it is utterly safe. You can't hurt your eyes looking through a PST.

Browse the images below. They are examples of photos taken through a PST by readers of http://spaceweather.com. The PST really works.