Margaret J. Goldstein was born in Detroit and graduated from the University of Michigan. She is an editor and the author of many books for young readers. She lives in Palm Springs, California.

Landing spacecraft on Mars is difficult and risky. The planet's surface is riddled with rocks and craters, and sometimes the technology on a landing craft fails. Learn about the dangers spacecraft face as they land, past successes and failures, and the solutions scientists have come up with so that one day, landings may be safe enough for humans to travel to Mars.