Kevin Knuth

And they're like scanning or, you know, like that kind of behavior.

And they follow in front of the plane for some time.

And then this giant walnut-shaped object shows up that's something like four 747s in length.

Right, so this thing's the size of an aircraft carrier.

And the pilot said that when it was in front of the plane, he couldn't see anything but the craft.

It's that big.

So it's unmistakable.

I mean, and he's screaming at air traffic control.

you know, what do I do about this?

And they're not picking it up on radar.

And so it was later found that military height finding radar was picking it up.

And so that radar actually, those radar records actually got collected.

And so those walnut shaped craft basically follow the 747 for about 45 minutes.

stayed about seven kilometers away, but it would go from one side of the plane to the other.

It was bouncing around from one side to the other.

And we analyzed its speed and acceleration just crudely based on the description of what it was doing.

So it would go, so at one point it would be at like one o'clock and then the next sweep of the radar, which is about 12 seconds or so, would be at six o'clock.

And so we were using that information to estimate speeds and accelerations.

Daniel Kumbay, another physicist from the Niels Bohr Institute, actually took the radar.

I didn't know that we could get our hands on the radar measurements when we published that paper, but he actually got the radar data.