Such creative fieldwork could be considered Earth art, or land art—a movement that started in the 1960s to draw attention to the natural world, expand the definition of sculpture, and to reject ...

A colorful coral reef, viewed from just beneath the surface of the ocean. A winding river delta, seen from far up in the sky.

"I would probably put in a little more effort trying to actually get my art piece up there," she said with a laugh. McCauley said the astronaut doodle will return to Earth at some point after it's ...