Almost directly overhead in this month’s early-evening Colorado sky, an observer can view one of summertime’s more prominent ...

Stephen Sondheim's subversive fairy-tale musical includes "Giants in the Sky", "It Takes Two", and "Children Will Listen".

Will the Milky Way and Andromeda galaxies collide in several billion years? The odds have changed with a new study using ...

Using the Hubble Space Telescope, astronomers have discovered a new rogue planet that was orphaned from its home planetary ...

There's so much more to Andromeda than its eponymous galaxy. Here's a list of other targets to observe in the Princess.

An investigation, carried out by the astrophysicists of the Instituto de Astrofísica de Canarias (IAC), questions one of the ...

Many astronomers are growing increasingly concerned that these outdoor lighting from roads, buildings and elsewhere could ...

Did you know that nearly 80% of the world’s population lives under light-polluted skies, unable to see the Milky Way with the ...

Scientists have long studied the vast and mysterious web-like structure of our universe, filled with clusters, filaments, and ...

Utah is home to over two dozen certified Dark Sky places. The latest is in the southeastern corner of the state.

The Deltas will fly out of the southern sky. Given the relatively low altitude of the radiant from the Northland, and ...

Columnist Justice B. Hill remembers the magic of starry nights from his youth and mourns how light and air pollution have ...