NASA's Voyager 1 spacecraft took a photo of Earth and the moon. It was the first time both the Earth and the moon were ...

"There's very strong evidence that the ingredients for life exist on Europa, but we have to go there to find out." ...

Slide your gaze southeast of this star; under higher magnification, look for a parallelogram ... 10:30 P.M. Moonset: 1:42 P.M ...

NASA’s Europa Clipper spacecraft, the largest the agency has ever built for a planetary mission, will travel 1.8 billion ...

By staring into the hellish landscape of Jupiter's moon Io—the most volcanically active location in the solar system—Cornell ...

Jupiter Icy Moons Explorer (JUICE) mission photographed the Earth, moon and Uranus as it heads toward Venus for a gravity assist next year.

A planet swings in front of its star, dimming the starlight we see. Events like these, called transits, provide us with ...