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.

Much closer to the horizon and a distinct reddish color, the planet Mercury isn’t on most people’s observing lists. In fact, a professional astronomer last year told me it was impossible to ...

But as a professional astrologer of more than a decade and the author of the astrology book Mercury Magic: How to Thrive ...

Mercury is the closest planet to the Sun and Mercury retrograde is an optical illusion which occurs three or four times a year, making the planet appear to move in the opposite direction than it ...

The BepiColombo spacecraft may have only made rapid flybys of Mercury, but it is already helping to unravel mysteries surrounding the closest planet to the sun. In 2026, a European Space Agency ...

Mercury retrograde is an often-feared, albeit frequent, astrological event. Here, learn how the November backspin will affect you personally, according to your birth chart.

Mercury and Mars are even smaller ... thing scientists are considering. Rather, the planet’s unusual size might actually mean that it’s a brown dwarf. Brown dwarfs, which are sometimes ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. When is Mercury retrograde? It starts today, and if you believe ...