NASA | LEND: The Lunar Neutron Counter

The video explains how NASA's Lunar Reconnaissance Orbiter uses neutron counting to find water on the moon. Cosmic rays hitting the moon's surface produce neutrons, which interact with hydrogen atoms in the soil. By measuring the speed of these neutrons, scientists can estimate hydrogen levels, indicating potential water presence. This method helps identify promising areas for lunar exploration.

What is the primary purpose of the Elrose LEND instrument on NASA's Lunar Reconnaissance Orbiter?

• To measure the temperature of the moon's surface

• To count neutrons coming from the moon

• To capture images of the moon's surface

• To analyze the moon's gravitational field

How are neutrons released from the moon's soil?

• Through volcanic activity

• By the impact of cosmic rays

• Due to solar wind interaction

• From lunar earthquakes

What happens to neutrons in hydrogen-rich lunar soil?

• They remain unaffected

• They slow down after hitting hydrogen atoms

• They are absorbed completely

• They speed up significantly

Why is hydrogen detection important in the search for water on the moon?

• Hydrogen is a direct indicator of water

• Hydrogen presence suggests a higher chance of water

• Hydrogen helps in creating breathable air

• Hydrogen is used to power lunar equipment

What is the ongoing mission of the Elrose LEND instrument?

• To map the entire surface of the moon

• To continuously count neutrons and search for water

• To monitor lunar weather patterns

• To study the moon's magnetic field