Oumuamua is a space rock that formed around another star. Of the 10,000 space objects that have hurled past our Sun, this rock provides some proof that there are planets similar to Earth outside our solar system. This intriguing book reveals to young space explorers the secrets contained in the rocks that fly around in space.

Includes index.

What are comets and asteroids? -- Chasing comets -- Visiting asteroids -- Avoiding impacts -- Weird and wonderful -- What's next? -- Activity : your space mission.