Do you believe in aliens? Many people do. In fact, so many people do that the United States Navy changed the standards for reporting UFOs in 2019 to quell the sheer volume of eyewitness accounts coming in. With so many countries possessing sophisticated aircraft, the potential for misidentifying UFOs as alien crafts is huge. That said, aliens are alive and well in American pop culture—and many people think the government may be covering up secrets about aliens.
Unlike ghosts, UFOs are usually described in similar ways over time. The National UFO Reporting Center (NUFORC) has identified the most common words used to describe UFOs. There are "egg" UFOs, "cigar" UFOs, and lots of UFOs that people just can't find the words to describe. Why do we have these patterns? Is it because we're seeing real aliens, exploring our galaxy in their different spaceship models? Or is it because once the alien shapes are described, the terminology become known and used in subsequent "viewings"?
Stacker went into NUFORC's data to try and find the stories behind these shapes. The data is from May 14, 2019. Are any types derived from how we picture aliens in fiction? Can nature explain any of these phenomena? In looking at the overlap between these shapes and popular fiction, we found plenty of ways people reference culture and everyday phenomena to describe these alleged objects from space. Our adjectives for spaceships could also describe flying animals and even sports equipment. But spaceships from art and movies fall into these shapes, as well. Maybe it's no coincidence that Stitch escaping from space police officers or Deep Purple singing about space truckers ditching a fireball ship match what UFO enthusiasts report seeing in real life.
What follows is a gallery of the most common UFO shapes reported by witnesses, along with some threading of the needle to see how those shapes have manifested in popular culture. They say the truth is out there—but we may simply be seeing the shapes we've created ourselves.
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1 / 20
#20. Teardrop
- Count: 1,068
This UFO shape greatly resembles a weather balloon—and, in fact, can often be just that. But flying objects with this shape may be real spaceships with vapor trails left by burning fuel or compounds. That grain of realism may be why this shape was chosen for the Millennium Falcon.
2 / 20
#19. Egg
- Count: 1,076
The 1958 Loch Raven Reservoir UFO sighting was described as an “egg” consistently. But this classic spaceship design was already in the public consciousness thanks to Marvin the Martian. It was later popularized in “Mars Attacks!” and “Escape to Witch Mountain.”
6 / 20
#15. Rectangle
- Count: 2,026
The Nostromo from “Alien” definitely fits this description. But we'd argue that the Prometheus might look this way from a distance, suggesting that this spaceship shape is for the hardest working ships in the universe.
7 / 20
#14. Flash
- Count: 2,151
Memory wiper or natural phenomenon? Either way, it's good to have your eyes examined when you come across a UFO of this type (seeing flashes may also indicate a health issue). Various UFO sightings feature flashes of various colors, and may not be considered credible unless there are no comets or sources of noise tied to the phenomenon.
8 / 20
#13. Cigar
- Count: 2,901
This UFO shape is highly similar to cylinder-shaped ships, but with a distinct extended length. The shape also suggests softer edges than that of the rectangle—think the USS Sulaco from “Aliens” (which also appears momentarily in the opening of "Alien 3"). Maybe the length helps UFO ships achieve increased speed, as with the praying mantis?
9 / 20
#12. Changing
- Count: 2,936
The phenomenon of watching a flying object change size or shape over time alludes to technology that far exceeds our own. Maybe these UFO ships change internally like Hogwarts. Or maybe they consist of some of the many natural compounds that change color with temperature shifts, such as chlorine and thermoplastic compounds.
11 / 20
#10. Unspecified
- Count: 4,063
Let your imagination roam on this one. How would you describe the Slave 1 from “The Empire Strikes Back,” with its unusual shape and speed? When encountering a UFO, sometimes the proper words just don't come.
12 / 20
#9. Oval
- Count: 5,351
Children of the '90s may recognize this UFO shape from “Muppets From Space;” while children of the '80s got familiar with it in “Flight of the Navigator.” Many flying insects have a similar shape, allowing for safe travel and protection from predators.
13 / 20
#8. Disk
- Count: 7,414
“Independence Day” made this UFO shape famous and associated it with aliens that come purely to destroy humanity. But humans have been making discs take flight (in a fun way) since 800 B.C.
16 / 20
#5. Unknown
- Count: 8,415
Mysterious things falling from the sky understandably can leave eyewitnesses at a loss for words. Irregular shapes may, in fact, be a rising trend for UFO sightings—hence the stricter reporting guidelines.
17 / 20
#4. Fireball
- Count: 9,016
Since the fall of the city of Pompeii, humans have been cautious of fireballs coming from the sky. On the ground, most people are discussing the Flatwoods Monster and an iconic spell from "Dungeons & Dragons" when fireballs come up. The space truckers of “Space Truckin'” by Deep Purple ditch their fireball craft to travel on a more reliable craft.
18 / 20
#3. Triangle
- Count: 11,157
For a triangle-shaped UFO, think the Icarus ship from “Planet of the Apes” and the Ark from the “Transformers” series. Futuristic airplanes in pop culture can also share this shape. All of these may explain why this shape appears to be most on humans' minds.
19 / 20
#2. Circle
- Count: 12,456
Don't worry, the Death Star isn't coming to destroy us. Though maybe these are the UFOs responsible for crop circles? Assuming the phenomenon isn't just humans out to create aerial art, this shape seems the most intuitive for shredding up corn fields.