Alternative to a compass: Tie a piece of string to 2 pens or pencils. Use one pen as an anchor and the other pen to trace the shape of a circle.

During this phase, the moon turns a red-orange color due to Rayleigh scattering, the same atmospheric effect that makes sunsets appear red. "It's as if all the world's sunrises and sunsets are ...

NASA’s websites no longer include references to landing a crew that includes the first woman and first person of color on the Moon as part ... crew member to live on board the International ...