On August 21, 2017, a total solar eclipse will sweep across the continental United States, marking the first time …

Education for Everyone
On August 21, 2017, a total solar eclipse will sweep across the continental United States, marking the first time …
The moon changes its shape almost every night. But why? The phases of the moon are caused by the …
Lunar eclipses are a fascinating astronomical phenomenon. Occurring about twice a year, lunar eclipses are visible from a much …
The moon is our nearest neighbor in space and the only heavenly body that people have visited! Learn more …
In July of 1969, humans set foot on the first – and to date, only – celestial body away …