When looking up at the sky at night, it’s easy to get the impression that the stars go on forever in fairly uniform fashion. We know, of course, that this isn’t the case. Stars coalesce into galaxies, ...

Have you ever contemplated just how small we really are? Well, the mesmerizing video below maps the known galaxies in our small slice of the universe, and shows just how small our home galaxy The ...

Most of us consider Bootes the Bear Guard a spring constellation. That's when it first climbs up in the east behind the Great Bear. Now it's back in the west filling our gaze with one the largest ...

Stare into the night sky and you can’t help being amazed by the sheer scale of the universe. Look for Sirius, the brightest star in the sky. That’s 8.6 light years away. Polaris, the North Star, sits ...

Most of us would consider Bootes the Bear Guard a spring constellation. That's when it first appears in the eastern sky, following the tail of Ursa Major the Great Bear as the snow drifts recede. Come ...

STARE into the night sky and you can’t help being amazed by the sheer scale of the universe. Look for Sirius, the brightest star in the sky. That’s 8.6 light years away. Polaris, the North Star, sits ...