Jupiter and Mars will appear to make ultraclose approaches to the moon on two nights this week. Here's how to get the best ...

But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the ...

NASA officials said what Juno spotted was 'the most powerful volcanic event ever recorded on the most volcanic world in our ...

NASA's Juno spacecraft has discovered a giant volcanic hot spot on the surface of Jupiter's hellish moon Io. The eruptions in ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...

Watch a bright Moon dominate the sky, trace the Winter Hexagon, and continue enjoying the evening parade of planets in the ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body ...

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

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

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

Here's when and how to watch the next full moon and February's rare planetary parade across Pennsylvania skies, starting with shiny and bright Venus.

February has already proven to be a snowy month for Oregon, making the name of the upcoming full moon quite fitting. Here's ...