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  • Atmospheric entry - Wikipedia
    Crewed space vehicles must be slowed to subsonic speeds before parachutes or air brakes may be deployed Ballistic warheads and expendable vehicles do not require slowing at reentry, and in fact, are made streamlined so as to maintain their speed
  • How Do Space Missions Return to Earth? Reentry, Heat Shields . . .
    Learn how spacecraft survive reentry, slow down from orbital speed, and land safely on Earth using heat shields, parachutes, propulsive landing, and recovery systems
  • How spacecraft and rockets return from space
    No spacecraft returns from orbit the way a commercial airplane descends: all spacecraft returning from orbit must endure a fiery atmospheric reentry, where the atmosphere behaves less like air and more like a blazing barrier of compressed plasma
  • Artemis II re-entry speed, how far it went, distance from moon
    How fast did the Artemis II Space Launch System go during launch? To reach orbit, the Artemis II SLS rocket hit more than 17,000 mph That's 22 times the speed of sound
  • Trajectory Planning and Tracking for a Re-Entry Capsule with a . . . - MDPI
    This paper deals with the design of a guidance and control algorithm for the re-entry of a capsule with a deployable aero-brake A trajectory optimization model is used both in the mission planning phase to design the reference re-entry path and during the mission to update the trajectory in case of major deviations from the prescribed orbit
  • Re-Entry Aircraft - NASA
    As a spacecraft re-enters the earth's atmosphere, it is traveling very much faster than the speed of sound The aircraft is said to be hypersonic Typical low earth orbit re-entry speeds are near 17,500 mph and the Mach number M is nearly twenty five, M < 25
  • How do spacecraft reenter the Earth? | HowStuffWorks
    Spacecraft reentry into the Earth is a tricky process Find out how spacecraft re-entry works and why spacecraft are likely to burn up upon re-entry
  • Reentry capsule - Wikipedia
    The speed of a spacecraft highly depends on the combined effect of the two forces — gravity, which can speed up a rocket, and drag, which will slow down the rocket
  • Re-Entry Aircraft - NASA
    The Shuttle uses a rocket propulsion system to get into orbit, but during re-entry the aircraft is actually an un-powered glider Small steering rockets are used for maneuvering early in the re-entry because the low density of the air at altitudes above 50 miles makes aerodynamic surfaces ineffective
  • How Does Orion Survive 5,000°F Re-Entry? - FreeAstroScience
    When astronauts return from the International Space Station in low Earth orbit (LEO), their capsule enters the atmosphere at about 17,500 mph (7,823 m s) That’s fast — roughly Mach 23 And it’s still dangerous





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