theIASHub | 27 May, 2025
Tianwen-2 Mission : Recently, China announced plans to launch its Tianwen-2 mission, marking its first effort to collect and return samples from a near-Earth asteroid. The mission aims to provide valuable insights into the solar system’s history and the possible origin of the Moon.
o Significance: If successful, China will join an elite group of countries ,including the United States and Japan — that have successfully conducted asteroid sample-return missions.
o Post-mission Plan: After the sample drop, the probe will continue to the main asteroid belt for extended scientific exploration.
o One of only seven known quasi-satellites of Earth — objects that orbit the Sun but stay relatively close to Earth due to gravitational interactions.
o Orbital Pattern: Appears to lead and trail Earth in its orbit, creating an illusion of orbiting Earth itself.
o Stability: Has remained in its current orbit for around 100 years and is expected to continue for at least another 300 years.
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