Earth Day has been celebrated across the country for more than 50 years now, and the annual celebration is once again around the corner.

April Fools' Day is celebrated worldwide, and many countries have their own unique pranks and jokes. In France, paper fish are often put on someone's back as a joke because the fish are said to be young and, therefore, easily caught. The prank is called the "April Fish," and those who get the fish placed on their backs are seen as gullible.

Look Up at the Sky Day, observed annually on April 14, invites us to pause, look up – and appreciate the vast expanse up there.