Very interesting. But the opinion about their origin (especially the astronaut) remains twofold. From the tower on the Pan-American Highway, you can see the geoglyphs "tree" and "hands" up close. You will see that these are small grooves with a very smooth surface
They carry small airplanes for 6 people to see. It's interesting, but it's hard for people with weak vestibular apparatus, steep turns)
Here, only the outlines of some can be guessed, Google maps are drawn, they are not really visible from space