DULUTH — We woke up to winter, and now it's spring. Funny how astronomical events can turn on a dime. The new season began at 10:33 a.m. CDT Sunday when the center of the sun crossed the celestial ...

The autumn equinox is now upon us! Today marks the moment that the sun crosses the celestial equator, ushering in the beginning of astronomical autumn in the northern hemisphere, which brings with it ...

Today, I want to talk about the equatorial coordinate system. Start with this: What if we could project Earth's coordinates of longitude and latitude into the sky? Latitude wouldn't be a problem, but ...

As the weather gets warmer and clearer skies return, make plans to stargaze over the next several months. Whether you are staying at home or heading out on vacation, your latitude location will play a ...

Birds are chirping, the skies are clear, and that can only mean one thing ― spring is near. The first day of spring, also known as the vernal equinox, is fast approaching in the Northern Hemisphere.

After another long winter, we could all use some spring. Yes, winter sports are great, but many of us are ready to turn the page. It’s time for spring 2023 to begin, at least astronomically, and it ...

The comet is almost at its closest approach to Earth on July 14. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A megacomet glows in the dark in ...

How much of the sky can you see at any one time? This, of course, assumes you are looking up from a wide-open, flat field or out on an ocean liner with nothing but a flat horizon no matter which way ...

STATEN ISLAND, N.Y. -- Take out your sweaters and boots and put away your warm-weather clothing, as Thursday marks the first day of fall. The autumn equinox takes place when the sun crosses the ...

When it comes to locating objects in the night sky, how does one convey its precise position? The sky is divided into a scattered pattern of 88 constellations of various sizes and shapes covering ...

How much of the sky can you see at any one time? This, of course, assumes you are looking up from a wide-open, flat field or out on an ocean liner with nothing but a flat horizon no matter which way ...