Mars Facts

A 100-pound person on Earth would weigh 38 pounds on Mars.

Olympus Mons on Mars is the tallest volcano in the Solar System, standing approximately 13.6 miles (22 km) high. It is nearly 2.5 times the height of Mount Everest.

Mars had an oxygen-rich atmosphere around 4 billion years ago

Astronomer Percival Lowell became famous for claiming to see canals on Mars built by an intelligent civilization. Researchers later suggested his observations of spoke-like features on Venus were actually the shadows of blood vessels in his own eye, caused by his telescope's unusual setup.