spacecrafts

American spacecrafts have passed close to Venus and Russian ones have parachuted instruments to its surface.

Over tower the numerous optoelectronic spacecrafts set aside one another beautiful color line, mixing among magnificent morning.

But both Viking spacecrafts send back photos of nothing but rocks and sand.

It's a real danger for spacecrafts. But we could dispose of the debris by simply sending it back into the earth's atmosphere.

While guidance project of the spacecrafts' rendezvous is designed, completion of rendezvous under error condition is considered.

The rotation dynamic and quaternion kinetic equations of spacecrafts were educed according to the principles of variable-structure control.

the inter-satellites links are researched between a single relay satellite and the user spacecrafts.

That's one way we could deal with the debris of satellites and spacecrafts.

The concept and goals for autonomous spacecrafts are defined.

The present project deals with attitude dynamics and control of reconfigurable spacecrafts.

The Soviet Union started Mars exploration in 1960 by launching two unmanned spacecrafts.

Aiming at the problem of rendezvous between 2 spacecrafts, an optimal, most fuel-saving 3-impulse rendezvous method was investigated.

Pang said all countries which are operating space vehicles should take care of their own spacecrafts so that they won't pose any danger.