As Haqq-Misra told Universe Today via email: "Astrobiology has the entire history of Earth to draw upon as examples of how life has modified the planet. The search for extraterrestrial ...

"They wanted drawing ideas of what life would be like ... McCauley said the astronaut doodle will return to Earth at some point after it's made a full orbit. "They're going to mule down that ...

Plastic," offers a multitude of creative possibilities. Here are some ideas to get your artistic juices flowing: Draw a divided Earth: On one side, a vibrant, healthy Earth teeming with life.