1. Saturn V: The Saturn V rocket, used in the Apollo program, was one of the most powerful rockets ever developed. It had a maximum speed of approximately 25,000 miles per hour (40,000 kilometers per hour) during its ascent.
2. Space Shuttle: The Space Shuttle's main engines could propel it to speeds of about 17,500 miles per hour (28,000 kilometers per hour) during its ascent to orbit.
3. Delta IV Heavy: The Delta IV Heavy rocket, used for launching payloads into geostationary orbit, can reach speeds of up to 23,000 miles per hour (37,000 kilometers per hour) during its launch phase.
4. Atlas V: The Atlas V rocket, employed for various missions including launching probes to other planets and satellites, has different payload configurations, resulting in variations in its speed. On average, its speed during its ascent stage is around 15,000 miles per hour (24,000 kilometers per hour).
5. Falcon 9: SpaceX's Falcon 9 rocket, regularly used for launching commercial payloads and space missions, achieves a maximum speed of approximately 17,500 miles per hour (28,000 kilometers per hour) during its ascent.
6. Space Launch System (SLS): NASA's Space Launch System (SLS), designed for deep space missions such as the Artemis missions to the Moon and beyond, will be capable of reaching speeds of about 25,000 miles per hour (40,000 kilometers per hour) during its ascent.
These speeds are estimates and can vary depending on the specific mission requirements, payload weight, and the rocket's design and propulsion capabilities.
