This is the Google logo you know, but with one major difference.
Google made it.
Not the people at Google (the company) — the artificial neural network that lets Google (the tool) recognize images.
These neural networks — which Google uses for products like reverse image search — get "trained" by looking at thousands of images, identifying features in them until they understand what, say, a tree looks like.
But when Google tries to let the neural network make images on its own, things get weird. This is what happened with dumbbells:
As you can see, it doesn't work great — the network had trouble telling apart arms and the weights they're holding, so it created these horrific dumbbell-arm hybrid images.
And this is what happened with the sky:
Basically, Google has the artificial network take a look at an image, decide what the image is of, and then accentuate its main features.
There was one bird in the above image, so Google created a lot more weird ghost birds for its interpretation of the sky.