Fans at The Chunk bring their own engineering masterpieces to the field each year.

These returning champs have modified their machine. Can they go even further? Team captain Greg chats with Kari about their modifications.

Team Chunk Norris added some height to their machine for this year's event. Could this modified catapult be a winner, or will their pieing nightmare come true?

This video was made by embedding a camera inside a pumpkin and chunkin' it high and far. You won't believe how cool the view is up there.

A space shuttle's camera captured several white blinking dots on film near planet Earth. What are these objects and why were they blinking?

James McDivitt, a NASA astronaut and engineer in the 1960's, reported he saw and filmed a strange object in space. Is there a logical explanation or was there really something out there?

Countless mysterious objects have been caught by NASA's cameras. Many astronauts have even reported seeing unidentified flying objects. Has NASA recorded the first traces of extraterrestrial life?

The U.S. Air Force created the Condon Report in 1968 to address supposed UFO sightings. The report stated that "further extensive study of UFO's probably cannot be justified" and is seen by some as an attempted government cover up.

On a routine space walk, Astronaut Luca Parmitano starts to feel water building up in his helmet. Mission Control aborts the walk but Parmitano struggles to get back to the ISS as the water still rises.

It looked like a massive spacecraft launching from the sun. What was the mysterious dark object?

Kepler-452b is the most Earth-like planet ever discovered. Is there a possibility we could move there in the future?

After the Apollo 16 astronauts return to Earth, photos taken in space appear to show an unidentified flying object floating near their craft. It takes decades for experts to determine what was hovering near the American astronauts.

Were "moon pigeons" spotted on Apollo 10 mission a warning for humans to stay away? Some people think so. This is the moon mission mystery you may not know about.

As NASA's New Horizons probe was about to fly by Pluto, the probe's computer suddenly went offline, breaking communication with scientists on Earth.

Space Shuttle Atlantis commander sees something strange outside the space shuttle and reports his sighting to mission control. What did he see?

The first hi-resolution images of Mercury’s Caloris Basin reveal an enormous set of grooved valleys. These tentacl-like hollows earned Caloris the nickname "Mercury’s spider".