An ancient Mayan calendar predicting doomsday on December 21, 2012, has many folks worried the world will end in about three weeks.
It is a concern many have directed to officials at NASA. Usually questions sent to NASA deal with space, but in recent years more people have been asking about the Mayan prophecy.
"These are questions about astronomy and planets and life in the universe and that went along fine until about four years ago when suddenly I started getting these questions about the end of the world," David Morrison, a NASA scientist who answers letters from the public, said.
Click play to see our interview with CBN Chaplain Joel Palser about why people fear the end of the world and how Christians should be living and ministering to them.
One version of the Mayan doomsday scenario has a planet crashing into Earth, but Morrison said there's nothing headed our way.
"If there were such an object, it would be the brightest thing in the sky -- after the sun and moon -- anybody could see it," he explained.
While there's no evidence of a threat, Morrison said even the fear of the doomsday prophecy could lead to tragedy.
"I have received letters from young people who say they are contemplating suicide. I've received a few from mothers who say they're planning to kill their children and themselves," he recalled.
"One touching letter (said) simply, 'My best friend is my little dog, please tell me when I should put her to sleep so she won't suffer in the apocalypse,'" he said.
Morisson said such fear is unfounded and points out that even the Mayans must not have believed their own predictions because they also predicted other events happening years in the future, beyond 2012.
*Originally posted November 30, 2012.