Have you ever looked up on a clear night at the stars and noticed that some of them seemed to twinkle or dance? This twinkling is due to the Earth’s atmosphere. When light reaches Earth from a star, ...

Wonder of wonders, this is the last Weekly Wonder as we all shepherd our kids into this unusual school year. Here are a few fun diversions to ease stress — or, for younger kids, fill the time. The ...

The planet parade is when we have multiple planets visible in the sky at one time. We had one back in the morning sky last August, but this time we will have a parade in the evening sky with four ...

More than one billion people participate in Earth Day, making it the largest civic observance in the world. This year, make sure you join in on the action. Celebrated annually on April 22, Earth Day ...

Located across from the neon red Foot Locker sign inside Arizona Mills mall in Tempe, the bubblegum-pink sign announces you’ve arrived at Bubble Planet Phoenix: An Immersive Experience, a new ...

This Halloween season, NASA wants to open your eyes to the glorious spookiness all around us in the Milky Way galaxy. The space agency has just released two new "Galaxy of Horrors" posters, which ...