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  • The Orion Heat Shield: Description, Problems, Current Status, and What . . .
    At the bottom of the Orion spacecraft sits a 16 5-foot heat shield that NASA describes as the world’s largest ablative heat shield Its outer surface is made from 186 machined blocks of Avcoat, a reformulated version of the material used on Apollo capsules Those blocks are bonded to a titanium skeleton and composite skin, which give the structure its shape and let it carry descent and
  • The Artemis 1 moon mission had a heat shield issue. Here’s why NASA . . .
    The Orion capsule's heat shield had issues during the uncrewed Artemis 1 moon mission in late 2022 Here are the steps NASA has taken to prevent them from recurring on Artemis 2
  • Atmospheric Entry - an overview | ScienceDirect Topics
    Atmospheric entry refers to the process by which a spacecraft transitions from orbital flight conditions into a planetary atmosphere, where it must dissipate kinetic energy through atmospheric drag to avoid exceeding structural limitations due to thermal heating and deceleration loads
  • Landing Heavy Payloads on Mars: Overcoming the Planet’s Most Daunting . . .
    Here on Earth, you can use the thick Earthican atmosphere to slow your descent, bleeding off your velocity with a heat shield The space shuttle's tiles were designed to absorb the heat of re-entry, as the 77 tonne orbiter went from 28,000 km h to zero A similar technique could be used on Venus or Titan, which have thick atmospheres
  • Re-entry Dynamics: Understanding Spacecraft Re-entry into Planetary . . .
    Skip re-entry involves a spacecraft’s initial descent into the atmosphere, followed by a brief exit back into space, and then a final re-entry This technique is used to extend the re-entry process, effectively reducing the thermal load on the spacecraft through multiple dissipative entries
  • 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
  • Atmospheric entry - Wikipedia
    Atmospheric entry (sometimes listed as V impact or V entry) is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite
  • Spacecraft Re-Entry Dynamics: The Science of Safe Returns
    We navigate the craft through the upper layers of the atmosphere, where drag gradually slows the spacecraft, avoiding a descent that is too steep, which could result in excessive heating, or too shallow, which may cause the spacecraft to skip off the atmosphere like a stone over water
  • Ch4. 1. 7(10) - Federal Aviation Administration
    Another limitation during re-entry is heating The fiery trail of a meteor streaking across the night sky shows that re-entry can get hot! This intense heat is a result of friction between the speeding meteor and the air
  • The journey of Artemis 2 to the far side of the Moon: The challenge of . . .
    Illustration of the Orion capsule during reentry into Earth’s atmosphere The heat shield reaches temperatures close to 2,700 °C while the spacecraft travels at nearly 40,000 km h





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