On Sept. 18, 1977, NASA's Voyager 1 spacecraft took a photo of Earth and the moon. It was the first time both the Earth and ...

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

New and Selected Poems," the former U.S. poet laureate reflects on nature, poetry and the awe she continues to find in both.

A recently observed object called 2025 PN7 was found orbiting near the Earth. The quasi-moon is expected to accompany our ...

The bold question-askers at What If explore what Earth would be like as a moon of Jupiter. New details emerge on Kirk ...

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

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

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

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

Late at night, as I was writing, I looked up to see the bright moon hanging outside my window, and a fascinating hypothesis ...

Io, Europa and Ganymede had already shown their footprints through earlier observations. But Callisto, the farthest Galilean ...