Also known as false dawn, zodiacal lights are rare optical phenomena that occur around sunset and sunrise in early spring and late fall.
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
Why do many countries set the clocks back and forth an hour twice a year?
The 12 months of the year are linked to the Moon's orbit around Earth. Why are there 12 months? What do the month names mean?