Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Globular clusters like this one, Omega Centauri, are very dense ...

the bright stars Vega in Lyra and Arcturus in Bootes. Hercules' "Keystone" is home to the Great Globular Cluster in Hercules (M13), denoted here by a blue square. One of the biggest constellations ...

The broadcast formed part of the ceremonies held to mark a major upgrade to the Arecibo Radio Telescope. The transmission consisted of a simple, pictorial message, aimed at our putative cosmic ...