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 ...

Here’s everything you need to know about astrophotography in April 2025: ...

It’s stargazing turnover time! Nighttimes are shrinking, and you’re forced to wait longer into the evening to begin your ...

Saturn is below Venus and very low in the predawn sky. In late April it is five degrees above the horizon. You may need ...

It is stargazing turnover time. Night times are shrinking in Pottsville, and you must wait later into the evening to begin ...

Venus remains rather low at dawn but slowly gains altitude as the month rolls along. Look for it in the east 45-60 minutes ...