A solar eclipse or a lunar eclipse occurs when the Sun, Earth, Moon, and the lunar nodes align. This alignment happens twice ...

Solar eclipses are among nature’s most unusual and dramatic events. The Moon casts a shadow on the Earth that changes the light and temperature in some places for a short time when it moves between ...

The countdown for the year's first total lunar eclipse begins. The celestial event, which will see the moon change to rusty red hues, will occur in the U.S. on the night of March 13-14. According to ...

Virgo season began with a new moon, and now it’s ending with one, too. On September 21, the skies will deliver a rare encore: the second consecutive Virgo new moon, this one supercharged as a solar ...

The countdown for the year's first (and only) total lunar eclipse begins. The celestial event, which will see the moon change to rusty red hues, will occur in the U.S. on the night of March 13-14.

Just as NASA has its own satellites and telescopes floating around in space, so does the European Space Agency (ESA). ESA's Gaia Observatory, for instance, mapped nearly two billion celestial objects ...