Chinese astronauts return to earth after spacecraft damaged by space debris • FRANCE 24 English

Key Concepts

• Space Debris
• Space Exploration Challenges
• Shenzhou 21 Mission
• Shenzhou 20 Mission
• Viewport Window Damage
• International Cooperation in Space

Shenzhou 21 Mission Success and Challenges

The Shenzhou 21 crew has safely returned to Earth, landing in the Gobi Desert. The astronaut expressed a sense of relief and pride in successfully completing their mission aboard the Shenzhou 21 spacecraft. The journey of human space exploration is acknowledged as difficult and challenging, but these obstacles are precisely why the endeavor is pursued. The mission served as both a training opportunity and a practical test for the crew.

Shenzhou 20 Mission Delay Due to Space Debris

The three-man crew of the Shenzhou 20 mission, who were on a six-month rotation, experienced a significant delay in their return. Originally scheduled to land on November 5th, four days after the arrival of the new Shenzhou 21 crew, their return was postponed by nine days. This delay was caused by their return spacecraft being struck by space debris, which resulted in minor cracks to a viewport window.

The Threat of Space Debris

The transcript highlights the severe threat posed by space debris. It is estimated that millions of pieces of debris orbit the Earth at speeds exceeding that of a bullet. The energy involved in such a collision is immense; even a small piece of debris traveling at these speeds can inflict damage comparable to a car crash on a highway, magnified by approximately 30,000 times. This incident underscores the growing danger of increasing space debris, a problem anticipated to worsen.

Parallels to Other Space Incidents

The delay experienced by the Shenzhou 20 crew is compared to a similar situation where two NASA astronauts faced an extended stay on the International Space Station due to issues with their Boeing Starliner capsule. This comparison emphasizes the recurring nature of technical challenges in space missions.

Growing Calls for International Cooperation

The increasing threat of space debris and the complexities of operating in a more crowded space environment are driving calls for enhanced international cooperation. The need for collaborative efforts is deemed essential to ensure safe operations at higher traffic levels in outer space. Chinese experts have previously stated that Beijing would not allow its astronauts to be stranded in space for extended periods, such as nine months, implying a commitment to astronaut safety and mission reliability.

Conclusion

The successful return of the Shenzhou 21 crew, despite the challenges faced by the preceding Shenzhou 20 mission due to space debris, underscores both the resilience of human space exploration and the critical, escalating threat of orbital debris. The incident serves as a stark reminder of the inherent risks in space travel and reinforces the growing imperative for global collaboration to manage space traffic and ensure the long-term sustainability and safety of activities in orbit.