One of the most famous missions was the historic landing of Chang'e-4 spacecraft on the moon's far side in 2019.

最著名的航天任务之一是2019年嫦娥四号探测器在月球背面的历史性着陆。

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Orbiting the moon at an altitude of just 31 miles, the LRO spacecraft is designed to map the lunar surface in unprecedented detail to help identify possible landing sites for future manned missions.

LRO太空飞行器在仅31英里的高度绕月球飞行，设计该飞行器的目的是绘制空前详细的月球表面地图，以帮助确定未来载人飞行任务可能的着陆点。

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NASA's Gravity Recovery and Interior Laboratory, or GRAIL, mission spacecraft will orbit the moon before landing on the lunar surface.

美国航天局的重力恢复与内部实验室计划，又称“圣杯”号月球探测器将首先环绕月球轨道飞行，然后在月球表面着陆。

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Then,they joined the two spacecraft together again, just as astronauts would do after a moon landing.

VOA: special.2009.07.08

The lower half of the spacecraft, or landing vehicle, still lies there today.

VOA: special.2010.03.02

The firing slowed the spacecraft and sent it down toward the landing place.

VOA: special.2009.07.15

This jaw-dropping landing process, involving a sky crane and the world's largest supersonic parachute, allowed the spacecraft carrying Curiosity to target the landing area that scientists had meticulously chosen.

CNN: Mars landing went 'flawlessly,' scientists say

The waterproofing burns off during the shuttle's fiery re-entry into Earth's atmosphere, leaving the tile-encrusted spacecraft vulnerable to the elements after landing.

CNN: Technicians finish toasting shuttle tiles

However the practicalities of landing a spacecraft to monitor, explore or deflect an asteroid still face a number of challenges.

CNN: Space's threat to civilization