A nebula is a cloud of ... as a distinct bright patch or dark silhouette against other luminous matter — and this one has an astonishing likeness to a horse rearing its head.

This dark nebula, made of dust and super-cold gas, lies in the constellation Orion the Hunter. You'll need a dark observing ...

In this episode, Dave Eicher invites you to go out and try to observe a celestial object that’s quite difficult to see — the Horsehead Nebula. This dark nebula, made of dust and super-cold ...