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.

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

New Africa - stock.adobe.com While Mercury, the wily planet of communication and exchange doesn’t station retrograde until March 15th, we get a lovely little preview of its hijinks for the next ...

WASHINGTON — Stargazers will have a special chance to see seven planets align in the night sky this week as Mercury joins Venus, Mars, Jupiter, Saturn, Uranus and Neptune in a planetary parade.

Last month stargazers were treated to an alignment of six planets but Mercury will now make an appearance to complete the line-up. Experts say that the best time to see the planets align will be ...