Mercury retrograde is on its way ... these planets will look like they are traveling backward in order to position themselves between Earth and the Sun, Caves explains. This movement is called ...

Is the Best Time to Spot Mercury . In the early morning, Mercury will rise before the Sun and hang low in the east close to ...

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 ...

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.

How can we successfully collect and return samples from Mercury and Venus to Earth? This is what a recent study presented at ...