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Orion re-enters Earth at 32 times the speed of sound

To commemorate the anniversary of the iconic re-entry of NASA’s Orion spacecraft during the Artemis I mission on December 11 last year, NASA released footage showcasing the spacecraft’s fiery descent through Earth’s atmosphere at a remarkable speed, around 32 times the speed of sound. The Orion spacecraft, a critical component of NASA’s Artemis program designed to take humans into deep space, had been launched on November 16, 2022, using NASA’s Space Launch System (SLS).

During its 25-day mission, Orion spent six days in orbit around the moon, reaching a distance of 434,500 kilometers (270,000 miles), surpassing the achievements of any spacecraft designed for human exploration. Its notable re-entry into Earth marked another first, as Orion became the first human-designed spacecraft to attempt a “skip” re-entry, akin to skipping a stone across a lake. This innovative approach allowed the spacecraft to consistently land at the same site, enhancing landing accuracy and facilitating quicker crew retrieval.

The “skip” re-entry method is of particular significance for the Artemis II mission, the first-ever crewed flight aboard the Orion spacecraft, scheduled for launch in November 2024. This approach is expected to enable Orion to land closer to the United States coast, streamlining the recovery process by reducing the need for extensive resources stationed in the Pacific Ocean.

The Artemis program aims to return humans to the Moon and eventually facilitate crewed missions to Mars. The successful missions and innovations demonstrated by the Orion spacecraft play a pivotal role in advancing human space exploration and developing the necessary capabilities for future deep-space missions.

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