Sky This Week is brought to you in part by Celestron. Friday, July 4Mercury reaches its greatest eastern elongation (26°) ...

Astronomers describe Mercury as an "inferior planet", because its orbital path around the sun is much closer than that of ...

Why does the sky turn red, orange, and pink at sunset? The phenomenon of scattering is also why the sky turns red, orange, and pink at sunset. Crucially, you need some cloud to see this.

The planet Mercury is visible after sunset in the west, forming a line with the heads of Gemini the Twins: the stars Castor ...

There’s truly nothing like a pretty sunset. As the sun sets, the heavens above are like cotton candy: lighting up with a beautiful display of deep reds, vibrant oranges, and intense pinks.

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Have you ever looked up at the sky and wondered why it’s blue during the day, but glows orange or red during a sunset? It’s one of those everyday wonders we often take for granted. The answer ...

Antares is a red supergiant star located 400 light-years from Earth. The waxing gibbous moon will shine close to the red star Antares in the constellation Scorpius on the night of June 9.