A Mysterious Light on the Darkest Night

The Fun of Going Faster-Than-Light

Birger Johansson's Instagram, Twitter & Facebook on IDCrawl

A Whole New World at the Edge of the Solar System

A Mysterious Light on the Darkest Night

Messier Monday: A Four-Star Controversy Resolved, M73

Our Nearest Galactic Neighbor

How long does a Solar Eclipse last?

A Mysterious Light on the Darkest Night

A Mysterious Light on the Darkest Night

The Nearest Sun-Like Star May Be As Miraculous As Our Own!

Messier Monday: A Four-Star Controversy Resolved, M73

Our Nearest Galactic Neighbor

Our Nearest Galactic Neighbor

A Mysterious Light on the Darkest Night