Dark matter is a confounding concept that teeters on the leading edges of cosmology and physics. We don't know what it is or how exactly it fits into our understanding of the universe. We only know ...

Trottier Observatory and Science Courtyard is celebrating ten years of space exploration this spring with an all-ages ...

Every night, we see familiar constellations in the sky that have inspired scientists and dreamers for centuries. But the ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

Timing is everything when everything is moving. At one o’clock this afternoon the moon was right in the middle of the ...

Here's our weekly guide to the planets, stars and other highlights in the night sky this week. Plus, we've got a heads up on ...