A new moon is when the moon shares the same celestial longitude as the sun; the two bodies are said to be in conjunction.

Some observers may have noticed a faint glow illuminating the darker portion of the moon-a phenomenon known as Earthshine or ...

The crescent moon will shine with Jupiter among the stars of Gemini early on Sept. 16. Turn your eyes to the east in the ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

Plus, catch Saturn and Neptune at their brightest; spy the "string of pearls" galaxy; and a close encounter of the moon and ...

In a landmark observation by a team of international researchers, NASA's Juno spacecraft has, for the first time, clearly ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and Callisto (in that order). Credit: Space.com | footage credit: ESA/DLR/FU Berlin ...

A truly majestic sky sight last month was a close pairing of the two brightest planets, Venus and Jupiter, at dawn Aug. 12.

Jupiter is the king of moons. With 95 of them orbiting the gas giant, some are so large they rival planets in size. But what ...

With both the Moon and Jupiter in Cancer, each astrological sign experiences a heightened feelings on Tuesday.

NASA's Juno spacecraft has spied the final "auroral footprint" of a moon of Jupiter, meaning that it has watched as the moon ...

Whether you are in the U.S. hoping to spot Venus beside the moon today, or in Europe awaiting the rare occultation, September ...