The two brightest nighttime stars visible in the Pottsville sky are Sirius and Arcturus. April is the only month of the year when we can enjoy both of them at the same time in the early evening: ...

Since 1986 I have had an affiliation with the Hayden Planetarium in New York. My "official" title there is "Associate and Guest Lecturer." Indeed, through all of these years I given scores of ...

Looking for a sky event this week? Check out our full Sky This Week column. March 15: Uranus meets 13 Tau High in the south this evening is Canis Minor the Little Dog, shining above the bright star ...

If you’ve been a faithful reader of my Skywatch column, thank you! You also know how much I love the winter constellations strewn out over the southeastern evening sky. I know I’m certainly not the ...

These hot August nights can be great for stargazing. Here’s a look at what’s going on above us right now and later in the month. The expression “dog days” refers to the period from July 3 through Aug.

The Earth’s thick atmosphere causes the scintillation, or “twinkling,” we see when we look at stars. Credit: Creators.com illustration We on planet Earth thrive under a thick atmosphere of oxygen, ...

Whenever you gaze upon the stars and constellations, it is easy to forget you are seeing a three-dimensional picture over Pottsville. The constellations seem to be set against a black canvas for all ...

These hot August nights can be great for stargazing. Here’s a look at what’s going on above us right now and later in the month. A lost map of the stars. A medieval manuscript. And a Menlo Park ...