What You’re Probably Seeing If You Spot a UFO
Season 52
Episode 1
About the Episode
When you spot a UFO, are you really seeing something unknown? You can actually see things in Earth's orbit like weather balloons, the International Space Station, and a 60-satellite system called Starlink. Technology has created more clutter in the sky — and a much greater chance for us to misinterpret what we're seeing.
Aired:
| Expires: | Runtime: 2m 17s
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Extras
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Egypt's Tombs of Amun Preview
A long lost ancient cemetery opens the door to a unique period in Egyptian history.0:30 -
What Happens to Your Checked Bag at the Airport?
Getting the right bag to the right plane requires an ingenious system. Here’s how it works.2:34 -
Area 51: UFO Sightings and an Infamous Government Cover-Up
Area 51’s UFO myths became a cover for secret testing of cutting-edge military technology.2:35 -
Is the Government Hiding Information on UFOs?
What does the government know about UFOs? Experts weigh in on the need to identify these objects.1:03 -
The Physics of Breaking, a New Olympic Sport
Here are three moves in breaking, the newest Olympic sport, that appear to defy the laws of physics.1:19 -
Who is the Mystery Man Buried Under Notre Dame?
Can scientists identify the man buried inside a mysterious coffin found under Notre Dame?3:00 -
Dino Birds Preview
Fossils reveal how birds survived the killer asteroid and became today’s only living dinosaurs.0:29 -
Extreme Airport Engineering Preview
Follow the race to build a world-class airport on the site of one of America’s busiest flying hubs.0:30 -
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How Atomic Clocks Keep Perfect Time
Atomic clocks use quantum physics and the resonant frequency of atoms, like cesium, to define time.2:15
