Mercury reaches its stationary point in Virgo today at 4 P.M. EDT. It will now begin moving westward, or retrograde, while also reducing its elongation from the Sun. The solar system’s smallest planet ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest updates on rocket launches, skywatching events and more! You are ...

A giant celestial snake is slithering into view in our current night sky this spring. We can look to the south to trace it during the early evening hours. In fact, the snake is one of the most ...

At many locations around the world, the night sky shines hundreds of times brighter than it did before the introduction of artificial light. Scientists have now studied variations in the radiance of ...