For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit around the Sun, temporarily caught by Earth’s gravity to become a far away ...
The Japanese MMX mission targets both moons of Mars, Phobos and Deimos ... The Japanese Martian Moons eXploration (MMX) mission will explore how the two Martian moons, Phobos and Deimos, formed, and ...
Two hypotheses for the formation of the Martian ... Testing different ideas about the formation of Mars's moons is the primary goal of the upcoming Martian Moons eXploration (MMX) sample return ...
He also studies asteroids and the two moons of Mars. His first book, Mission: Mars, won the 2015 Prize for Excellence in Children’s Science Books from the American Association for the Advancement of ...