Countless shadowed craters line the terminator all the way down to the moon's southern pole, while the 54-mile-wide (87 km) ...

This month's night sky is filled with close-range meteors, swirling nebulas, and prime stargazing conditions. Here’s when you ...

Early Friday morning, the Earth moved between the sun and the moon, casting its shadow on the lunar surface and turning it into a full blood moon. It was quite early in the morning, though.

Earth, sun, moon: three objects in space whose interactions have a pretty big impact on our lives. Earth orbits the sun once a year, and it rotates on its axis about once a day (depending on your ...

Beginning late Thursday, March 13 into early Friday, March 14, the Earth will pass between the sun and moon, resulting in the phenomena. Unlike past eclipses, this one will be viewable in some ...

A lunar eclipse occurs when Earth is between the sun and moon and the three celestial objects line up in a nearly perfect row, with Earth in the middle, so that the moon passes into our planet’s ...

The event happens when the Earth moves directly between the sun and the moon, casting a shadow over the lunar surface. According to NASA, "The Moon will pass into Earth's shadow and appear to turn ...

By contrast, Mercury’s relatively small size and proximity to the sun typically makes it difficult ... On March 1, the position of the crescent moon will aid in spotting Mercury, according ...