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 ...

Brightly colored illustration showing Earth cut in half to reveal distinct interior layers. The nature of Earth's interior has long fascinated scientists. Credit: Johan Swanepoel/Science Source ...

An image that purportedly depicted the Earth and sun recently began circulating on social media. "Earth and the sun caught in a single photo," reads a January 6 Facebook post. "It's so beautiful." ...

Illustrations of the Huttonian theory of the earth a facsimile reprint with an introd. by George W. White ...