Definitely an AI fake.

A complete Rainbow... photo was taken at around 30k ft above the Earth. On the ground, we usually only see the arc half of the circle.
Credit Photo: Lloyd J Ferraro
There seems to be doubt about the authenticity of the pic:
https://www.reddit.com/r/Damnthatsinteresting/comments/11c6yii/complete_rainbow_taken_from_30000_ft_in_altitude/

More details/photos: http://bit.ly/3SvxXbw

Complete Rainbow taken from 30,000 ft in altitude. Photo by pilot - Lloyd J Ferraro

Posted in r/Damnthatsinteresting by u/cenabollywood • 5,328 points and 106 comments

reddit
It's a fake - sorry folk, I shall now go and ...
@Rojertb BREAKING NEWS: There is no End of the Rainbow. Existence of said Treasure now in doubt.
'CAPT Lloyd J Ferraro Jr." | National Air and Space Museum

Rainbow at 30,000 Feet: Pilot’s Photo Captures Rare and Breathtaking Sight

A rare sight was captured from the cockpit of a commercial airplane as pilot Lloyd J Ferraro took a stunning photograph of a complete rainbow from an altitude of 30,000 feet. The breathtaking image shows

Hasan Jasim

@Rojertb

This doesn't seem right to me — isn't a rainbow always a perfect circle from the point of view of the observer? And where is the sun exactly?

@mattdm Presumably behind the camera
http://bit.ly/3SvxXbw
Rainbow at 30,000 Feet: Pilot’s Photo Captures Rare and Breathtaking Sight

A rare sight was captured from the cockpit of a commercial airplane as pilot Lloyd J Ferraro took a stunning photograph of a complete rainbow from an altitude of 30,000 feet. The breathtaking image shows

Hasan Jasim
@Rojertb Pretty sure this is fake. Rainbows are always perfect (partial) circles, no matter how you look at them (you can’t look at them from the side). And they need the sun exactly behind them (maybe exactly in front for exotic variations). And the circle doesn’t continue in the bottom left after the cloud.
Tl;dr: probably AI gen, maybe old skool shopped.
@Rojertb Oh this version had suspicious Chinese(?) characters cropped off. Here’s a bigger version on Reddit:
https://www.reddit.com/r/Damnthatsinteresting/comments/11c6yii/complete_rainbow_taken_from_30000_ft_in_altitude/
Complete Rainbow taken from 30,000 ft in altitude. Photo by pilot - Lloyd J Ferraro

Posted in r/Damnthatsinteresting by u/cenabollywood • 5,328 points and 106 comments

reddit
@Wlm 'twould seem that your doubts are shared!
@Rojertb I’ve seen a circular rainbow from the cockpit of a plane, but we were looking down at it.
@canayjun @Rojertb because the sun was above you - that's the only way to see a circular rainbow really

@Rojertb

Ice rainbows can form around a light source (e.g. sun) but it would be at their centre and the refracted colour is pale.

Rainbows are always round.

Normal rainbows are always diametrically opposite the sun, from the observer's point of view.

@Rojertb Odd the way it was viewed side-on, now I come to think on it... 🤦‍♀️
@Rojertb As long as the poster notes that the picture has been modified, I’m ok with it. Otherwise…
@MissPixiePancake Unfortunately no such note was given. It was on David Attenborough Club page on FB
https://www.facebook.com/photo/?fbid=169919662475593&set=a.122707353863491
Facebook

@Rojertb Yeah, fakes really bother me.
@Rojertb @LibertyForward1
I liked the comment that it was a portal from an alien race known as photoshoppers. :)
@Rojertb Obvious fake. The rainbow isn’t even a full circle.