Each cube-shaped spacecraft is less than 1.5 m across. The shadow-casting satellite holds a disk to block the sun from the telescope on the other satellite. This disk will mimic the Moon in a ...

Based on the data, it appears that Meteor-M 2-2 was struck by a micrometeoroid – either a natural chunk of space rock or some piece of man-made debris. The SUV-sized satellite was sent spinning ...

On October 4, 1957, the Soviets launched Sputnik. Americans feared the implications of the first man-made satellite orbiting above the Earth. Astronaut Frank Borman recalled, "I was teaching at ...

The amount of space debris has increased steadily since the launch of Sputnik in 1957, and about 22,000 man-made objects that are 10 cm or larger in diameter are currently cataloged and tracked in low ...