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 seven-planet alignment in February. This is what scientists hope to learn.

From January to March, the night sky will host a spectacular parade of planets featuring Venus, Mars, Jupiter, Saturn, Uranus ...

ANOTHER, even rarer, ‘planet parade’ is set to grace skies very soon. For one night only, all seven other planets in the ...

The Planet Parade of 2025 is a truly extraordinary celestial event that has stargazers excited. From January 21 to ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Mercury retrograde is happening again. If you believe astrologers and ...

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Despite the name, a planetary alignment isn’t when the planets get in a row, it’s when a fair few gather on one side of the ...

Venus, Saturn, Jupiter and Mars are all visible after sunset, but social media claims about it being a rare "planetary ...

GREEN BAY, Wis. (WBAY) - Today’s 3 Brilliant Minutes is out of this world -- and out of this galaxy! A European Space Agency probe gives us new pictures of Mercury, the planet closest to the sun. Brad ...