The red and green lights on airplanes have nothing to do with Christmas. Instead, they make up an important safety measure for those in flight.

Find out what's up in your night sky during March 2025 and how to see ... just north of the moon's equator (the up-down red curve). The wobble of the moon, known as lunar libration, shifts Mare ...

You can expect the moon to take on a dramatic shade of red or orange in the night sky during the total lunar eclipse because of how sunlight strikes the moon's surface after passing through the ...