CAPE CANAVERAL, Fla. — NASA test director Jeff Spaulding does not want to hear jokes on April Fools' Day. He doesn't want pranks. He just wants to send people to the moon. This is not a punchline.

In 1989, British police received frightened calls from people who said they’d seen a UFO flying through the sky. Officers were dispatched to a field outside London, where the craft had supposedly ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. April Fools' Day is an annual godsend for the most mischievous among us ...