asteroid

What would it take to carry people to the Moon, or Mars, or an asteroid?

Thinking of longer journeys to Mars or an asteroid would require careful measurement of conditions.

His game lasts until his final ship has either collided with an asteroid or lost a shootout with an enemy saucer.

The Asteroid Belt in the Solar System has many such gaps, created by the gravity of the Sun and Jupiter.

For the record, Deep Impact is about a comet, not an asteroid.

According to Boyle, a non-luminous and non-reflecting asteroid has crashed into the earth's gravitational field.

In the early afternoon they came to what must be the asteroid's northern pole.

It always landed on the plain where Parr had first set foot to the asteroid.

"They were inside this asteroid," decided Parr, half to himself.

"For getting away, for giving freedom to my only friends on this asteroid," said Parr.