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

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Even to a casual viewer, the waxing gibbous moon of Feb. 7 will appear quite unusual, climbing so very high in the sky.

February's full Snow Moon will have a royal companion as it rises alongside Regulus, a star nicknamed "Heart of the Lion", ...

After the space agency canceled its VIPER rover, an empty space was available on a private spacecraft that will still head to ...

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

Argonaut is designed to deliver supplies, infrastructure and payloads to the moon. It could survive for five years on the ...

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

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

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