Mach 10 is a unit of measurement used to describe an objects speed relative to sound. It is equal to ten times the speed of sound, which is approximately 7,672 miles per hour (2.13 miles per second), 12,347 kilometers per hour, 11,252 feet per second, or 3,430 meters per second. To put it in perspective, the speed of sound is approximately 760 miles per hour at sea level, but it decreases with altitude. Therefore, Mach 10 is an unimaginably fast speed that is difficult for humans to comprehend.

In the movie "Top Gun: Maverick," Captain Pete Mitchell breaks the Mach 10 speed barrier in his prototype jet called Darkstar. While Darkstar doesnt actually exist in real life, its meant to be a codename for SR-72, which is a follow-up to SR-71, both being reconnaissance aircraft developed by Skunk Works, an aircraft manufacturer located in the middle of the Mojave desert. However, in reality, achieving Mach 10 speed might be impossible for a human body since it cant withstand immense pressure.

In summary, Mach 10 is a unit of measurement used to describe an objects speed relative to sound, and it is equal to ten times the speed of sound. It is an incredibly fast speed that is difficult for humans to comprehend, and it might be impossible for a human body to withstand.