Mercury retrograde is on its way ... these planets will look like they are traveling backward in order to position themselves ...

I pick out North America’s celestial highlights for the weekend (which also applies to northern hemisphere mid-northern ...

While the video of Mercury’s transit across the Sun is breathtaking. The small planet even appears as a black disk silhouetted against the bright solar star that our solar system is centered around.

January is a good month for interesting planetary alignment. You will have a lot going on in the night sky. For most of the month, six out of the eight planets will be visible in the heavens. Mercury ...

Mercury has the shortest and fastest orbit around the Sun and experiences dramatic temperature changes as it rotates. It is a world of extremes. Explore facts about our solar system's fastest planet.

The Giant Planet resembles a majestic golden star, and stands high in the southwest at nightfall during April; it sets around ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the spacecraft captured the imagery. Credit: Space.com | footage & orbit animation ...