You've Been To Mars And A Comet; Japan's NASA Invites You To An Asteroid

A computer graphic image provided by Japan's space agency shows two drum-shaped and solar-powered rovers on an asteroid. A Japanese unmanned spacecraft released two small rovers on the asteroid Ryugu last week. A computer graphic image provided by Japan's space agency shows two drum-shaped and solar-powered rovers on an asteroid. A Japanese unmanned spacecraft released two small rovers on the asteroid Ryugu last week. Want to see what it would be like to stand on a asteroid? Well, if you were not a human but rather a seven-inch-diameter, just under 3-inch-tall, hopping robot?