Venus and Earth share some atmospheric quirks – but how did Venus get so unbearably hot, while Earth is mild and temperate?

View of planet Mercury from space. Space, nebula and planet Mercury. This image elements furnished by NASA. A few evenings ago I found myself in a remote layby in Utah close to Canyonlands National ...

Venus, Jupiter and Mercury are due to form a planet parade in June visible across the US. What to know, including the date and time and where to look.

Mercury is due to join Venus and Jupiter in the night sky for an uncommon celestial event commonly known as a planet parade.

This year’s Mercury retrograde in Cancer has arrived—here, find Vogue’s sign-by-sign guide to how it might affect you.

Mercury, Venus and Jupiter will gather low in the evening sky this weekend, giving skywatchers a brief chance to see three planets together shortly after sunset.

Mercury doesn't give up its secrets easily. The smallest planet in our solar system is also one of the most extreme—a sun-scorched, metal-rich world with a puzzling magnetic field and lavas unlike ...

Feel a shift in the cosmos? It might be Mercury retrograde. Here's what to know about the astrological phenomena and what it ...

“Super-puff” planets are fairly rare, but researchers just discovered two new ones with densities lower than that of candy ...

If you’ve been dealing with logistical nightmares, technical difficulties, or communication crash-outs, you can most ...