The Moon's phases are caused by changing amounts of sunlight reflecting off its surface as it orbits Earth. Lunar eclipses happen during a Full Moon when Earth is between the Sun and Moon. Solar ...

From solar eclipse glasses and viewers to solar binoculars and pinhole projection, there are plenty of ways to safely follow the moon's progress across the sun on April 8. When you purchase through ...

Has the sun already reached solar maximum? New data suggests Solar Cycle 25 may have peaked earlier than expected. Find out what this means. When you purchase through links on our site, we may earn an ...

Timekeeping was born out of man’s desire to make sense of the movement of the sun, the moon and the constellations. When the early horologists graduated from the sundial to gears and hands, one of the ...