[Narrator] The Pentagon's report on UFOs or UAPs,

unidentified aerial phenomenon,

was released to Congress;

and a big takeaway is many of the anomalous objects

that appear in the report remain unidentified.

To understand why, experts and pilots remain baffled.

We spoke to veteran pilot, Andrea Themely.

I am currently a pilot for a major airline flying 737s,

and I was previously a colonel in the Air Force.

I flew the F-15C Eagle, T-38 Talon, and a T-6 Texan II.

And I was an instructor in all three of those airframes.

Ultimately, pilots seem to be the ones who are seeing a lot

of these objects because they are out over the ocean flying.

[radio noise]

I can't imagine being in their shoes

and seeing what they saw.

I think it would be terrifying

to not know what this object was.

[radio noise]

[Narrator] Colonel Themely is going

to walk us through videos of unidentified aerial phenomenon

and explain the traits that make them unidentifiable

from a physics and aerodynamics perspective.

Let's unpack the first trait, anti-gravity.

The acorn shape, pyramid shape, and the spherical shape,

they seem to overcome gravity without any visible propulsion

or any air foils that provide lift

or what we would traditionally call a weight

Since the dawn of aviation on earth,

which has been about 120 years now,

normally lift is produced when an aircraft increases speed,

the air goes over the top of the wing,

and the bottom of the wing,

and meets at the end of the wing at the same time.

But because the top of the wing is a different size

than the bottom, it's going to create a negative pressure

because it's traveling faster

and it essentially sucks the wing and the rest

of the aircraft into that negative pressure area.

And that's what we refer to as lift.

[Narrator] Okay, so the unidentified aerial phenomenon

don't appear to have recognizable wings for lift,

but what about their propulsion?

[radio noise]

I'm watching the Gimbal video, this was filmed in 2015.

And as you can see, at the top

it's using the infrared sensor

and that is depicted by the IR

at the top of the screen there.

The pod has multiple sensors.

It has both an electro optical sensor

and an infrared sensor to detect targets.

What's noticeable is that there's no visible

infrared exhaust plume coming from this object.

And that indicates no source of propulsion as we know it.

You see WHT, which stands for white hot.

So the cooler heat signatures will appear as black

and the hottest targets are going to be displayed as white.

A normal fighter size target will have a heat signature

that can be detected approximately

10 nautical miles away with an infrared sensor.

The skin friction of an aircraft enough,

flying through the air, is going to be able

to give it heat signature

so that a targeting pod will be able to detect it.

[Narrator] These objects don't seem to generate exhaust.

So it's difficult

to understand how they're creating propulsion.

This leads to the second unidentifiable trait.

They fly at hyper speed.

[radio noises]

It's showing 180 knots right now

that is the actual closing velocity of that target

to the post-owned ship, the F-18 that's carrying the pod.

From the bottom there on the left-hand side

you see the F-18's airspeed 258 nautical miles per hour

or Mach 0.62.

And you can roughly tell if you do some rough math

that that object is going approximately 500 miles per hour

without any visible propulsion

or any air foils that provide lift.

[Narrator] That's fast, but not supersonic fast.

So let's consider the video taken

during the 2004 USS Nimitz encounter.

You can see at the very end, the video here

this aircraft just scoots off the screen very quickly.

Based on that, based on the testimony

of the USS Princeton operators

that found that object 60 miles away

several seconds later, it's clear that this object

was traveling at very high rates of speed

with a lot of acceleration.

[Narrator] According to the calculations

of the USS Princeton radar team,

the so-called tic-tac UAP would have reached a maximum speed

of about 46,000 miles per hour during a descent,

or 60 times the speed of sound.

As a point of comparison, the fastest manned aircraft

that the US Air Force has ever operationally produced

is the Lockheed SR-71 Blackbird,

which flew at Mach 3.2,

or three times the speed of sound,

the experimental North American X-15

which flew about Mach 6.7 or 4,500 miles per hour in 1967.

But what about present day tech?

It's no secret that the United States

as well as multiple other countries are working

on hypersonic technology.

And hypersonic means anywhere from five times the speed

of sound, to 10 times the speed of sound, it's pretty quick.

So the Boeing X-51 Waverider is one of those such vehicles.

This is an unmanned vehicle that's capable

of flying up to 70,000 feet and up to Mach five.

Other countries that have this technology or are working

on it include India, Russia, and China, for example.

[Narrator] Another attribute of UAPs

that make them tricky to observe is stealth.

Most of these images are infrared sensors that are just

capturing the heat signature of the aircraft.

This video is using night vision video on the deck

of a US Navy destroyer.

And the shape itself is unusual.

It's similar to our B-2, which has stealth technology

but it's not quite the same shape.

It's possible that the pyramid shape

is flat irregular surfaces

that would deflect radar energy

and not let it return to the host.

It's possible that that is a stealth technology

and that's why operators have had trouble

capturing this on their radars.

[Narrator] Stealth crafts work to scramble radar

in two ways.

First, with irregular flat surfaces, like the B-2 bomber

that will not easily return the radar beam.

And second, by using radar absorbing materials

on the craft's exterior.

It's unclear why it is flashing,

but some of it might have to do with the quality

of the camera or the night vision video that they have.

It's really tough to tell what the actual colors are

or if it is metallic or silver.

[Narrator] And yet, the U S doesn't have a monopoly

on planes that confuse radar.

The Chinese have the J-20, the Russians fly the SU-57

and then Japan, South Korea, Indonesia,

they all have fairly advanced stealth technology programs.

[Narrator] Another anomalous trait UAPs seem to have

is that they are transmedium.

[Voice on Radio] Splash, splash.

Transmedium just means

that these objects are moving easily

between different environments, such as space,

our atmosphere, and even underwater.

This video was taken from off the coast of San Diego.

And the most notable feature is the ability to fly both

in air and underwater.

As soon as the object nears the water,

they are waiting to mark the coordinates, the bearing,

and range of where this object went down.

And they're, I don't know, I'm not sure.

This video, I was like, I don't know that I can really,

cause there's nothing we have, that's even remotely close

to this, so I don't even really know what to say about it.

It looks like it did go into the water.

You'd think that the object has crashed.

However, when submarines went to go look for the object,

there was no trace of its remains.

What's significant about that is that it probably

has the capabilities to also travel under the water.

We have nothing here, in the United States anyway,

that can operate as both an aircraft and a submarine.

[Narrator] A recently leaked video

of what is allegedly the radar screen

aboard the USS Omaha,

might support the jaw-dropping assertion

that this UAP dropped into the water and swam away.

As investigators sift through the mountain of data connected

to the UAP report, Colonel Themely will keep an open mind

and her eyes on the sky.

There are possibilities that some

of these aircraft could be foreign adversarial aircraft

that are coming here to collect intelligence.

There's possibilities that there are individuals

within the United States that are creating this technology.

We don't know what this is

and there are a lot of unanswered questions still.

They seem to defy every law of physics

and aerodynamics that we know.

I'm excited that these questions are going

to start being answered.

Again, I'm a skeptic, I want proof,

I want to be able to see and believe something.

So I'm glad that the Pentagon is doing investigation

so we can actually figure out what these objects are.