Q:

# What is the maximum speed for a space rocket?

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The maximum speed for a space rocket depends on many factors, including how much fuel it has, its current weight and its position relative to objects in space at the time of measurement. Currently, the fastest rocket is Voyager 1, traveling in space at over 38,500 miles per hour.

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As a rocket flies through space, it burns fuel, becoming lighter; the decrease in weight allows it to move faster. All the points of reference for determining how fast an object travels in space are themselves in space, so they are also moving at a very high rate of speed. The rocket equation used by NASA applies laws of physics to the ever-changing conditions in and around a space rocket to determine its speed.

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## Related Questions

• A:

Speed and velocity are similar in that they are measured in the same measurement units, which are meters per second. However, velocity and speed are very different quantities because one has a direction and the other one does not.

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Fins provide stability to rockets and help them to face the right direction, maintain a straight trajectory and not spin uncontrollably. The fins make the rocket much more aerodynamic, allowing for smoother motion through both air and water.

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As of 2014, the fastest rocket ship, NASA's New Horizons spacecraft, was recorded at a speed of 36,000 miles per hour. The speed a spacecraft travels depends on if it is ascending, orbiting or returning to Earth.