Hearts on Mars

Look at these nice terrain features on Mars. Image credits: NASA/JPL-Caltech; MSSS Look at these nice terrain features on Mars. Image credits: NASA/JPL-Caltech; MSSS Dr. Jozef Kozár is a scientist and writer, studying planets, Solar System, and robotic space exploration missions. He is the author of seven books, author of several hundred articles published in various scientific and popular magazines, a former public speaker, and a documentary movies/TV guest. Jozef's Mars research and the “GNSS.