"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...

NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

This week, NASA released the first image from the Europa Clipper spacecraft's voyage. The image is a mosaic of a star field, created from three shots the solar-powered orbiter captured in December of ...

Tonight starts a great week of star gazing. Here's when to watch the full moon next to Venus, and a rare planetary parade ...

Three months after its launch from NASA's Kennedy Space Center in Florida, the agency's Europa Clipper has another 1.6 ...

In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

These two next weeks offer all but one of the planets in lovely view at nightfall. Fred Schaaf goes step by step through the ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

The chances of an asteroid striking Earth within the next decade has doubled in a matter of weeks, according to NASA ...

The discovery of a hot Jupiter next to a super-Earth (...) and a distant giant challenges our understanding of the formation and evolution of these systems,” said François Bouchy, a professor ...