How fast is a rocket going?

The speed of a rocket varies significantly depending on its mission and stage of flight. For example, during launch, a rocket can reach speeds of around 17,500 miles per hour (28,000 kilometers per hour) to achieve low Earth orbit. Once in space, rockets can travel even faster, with some missions reaching speeds of over 40,000 miles per hour (64,000 kilometers per hour) when heading to destinations like Mars. The speed is influenced by factors such as the rocket's design, propulsion system, and the gravitational pull of celestial bodies.