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Lunar Reconnaissance Orbiter Trivia Questions

How much do you really know about Lunar Reconnaissance Orbiter? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

LRO was built to search for signs of alien structures on the far side of the Moon.

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Easy
✗ FALSE

LRO's purpose is scientific mapping and resource assessment for future human exploration, not alien archaeology.

2.

LRO has been orbiting the Moon for over a decade, far exceeding its original one-year mission.

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Easy
✓ TRUE

Launched in 2009, LRO's primary mission was one year, but it continues operating, providing invaluable long-term data.

3.

LRO captured the first-ever images of the Apollo landing sites from orbit, showing tracks and equipment.

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Medium
✓ TRUE

LRO's high-resolution images revealed Apollo descent stages, rover tracks, and even the American flags still standing.

4.

The LRO carries a miniaturized atomic clock for precise navigation tests in lunar orbit.

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Medium
✗ FALSE

LRO does not have an atomic clock; that was on the Lunar Laser Ranging experiment, but LRO uses traditional tracking for mapping.

5.

LRO's camera can resolve objects as small as a beach ball on the lunar surface.

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Medium
✗ FALSE

LRO's narrow-angle camera resolves about 0.5 meters per pixel, not small enough for a beach ball, which is ~0.3 meters.

6.

LRO's orbit is so low it occasionally skims above lunar mountain peaks at just 20 kilometers altitude.

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Hard
✗ FALSE

LRO's typical orbit is about 50 km above the surface, but it never skims that low; 20 km would risk crashing.

7.

LRO discovered water ice in permanently shadowed craters at the Moon's south pole.

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Hard
✓ TRUE

LRO's LAMP and Diviner instruments confirmed water ice in cold traps, a key surprise for future lunar missions.

8.

LRO carries a laser altimeter that shoots the Moon's surface 28 times per second to build 3D maps.

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Hard
✓ TRUE

LOLA fires 28 laser pulses per second, measuring elevation to create the most precise lunar topographic maps ever.

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