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NASA discovers 'hopping' water on moon's surface

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NASA discovers 'hopping' water on moon's surface

NASA discovers 'hopping' water on moon's surface

Data from NASA's lunar orbiter has shed light on water movement on the moon's surface.

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NASA discovers 'hopping' water on moon's surface

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RESTRICTIONS: Broadcast: NO USE JAPAN, NO USE TAIWAN Digital: NO USE JAPAN, NO USE TAIWAN Data from NASA's lunar orbiter has shed light on water movement on the moon's surface.

According to NASA, scientists previously thought moon was arid, with water existing mainly as ice pockets in craters near the poles.

But in recent years, they have identified surface water in sparse molecule populations bound to regolith, or lunar soil.

Observations gathered by an instrument on NASA's Lunar Reconnaissance Orbiter indicate that water moves around the dayside of the moon.

Water molecules remain bound to the regolith until surface temperatures peak during lunar noon.

They then thermally desorb and either bounce to a nearby location that is cold enough, or stick to the moon's weak atmosphere until temperatures drop and they can return to the surface.

Scientists have hypothesized that hydrogen ions in the solar wind may be generating most of the moon's water.

But as the supply doesn't decrease even when the moon is shielded from solar winds, it suggests water builds up over time instead of raining directly down.

A paper detailing the findings has been published in the journal Geophysical Research Letters Planetary Science Institute senior scientist and lead author Amanda Hendrix says lunar water can be used to make fuel or for radiation shielding or thermal management.

This could make future missions more affordable as these materials don't need to be launched from Earth.

RUNDOWN SHOWS: 1.

Moon previously thought arid, but surface water recently found bound to lunar soil 2.

Lunar Reconnaissance Orbiter observed that water moves around, with water molecules bound to soil until lunar noon 3.

Water molecules desorb, hop to a cold enough location or to atmosphere, return when temperatures drop 4.

Hydrogen ions in solar winds may be generating moon's water VOICEOVER (in English): "According to NASA, scientists previously thought moon was arid, with water existing mainly as ice pockets in craters near the poles." "But in recent years, they have identified surface water in sparse molecule populations bound to regolith, or lunar soil." "Observations gathered by an instrument on NASA's Lunar Reconnaissance Orbiter indicate that water moves around the dayside of the moon." "Water molecules remain bound to the regolith until surface temperatures peak during lunar noon." "They then thermally desorb and either bounce to a nearby location that is cold enough, or stick to the moon's weak atmosphere until temperatures drop and they can return to the surface." "Scientists have hypothesized that hydrogen ions in the solar wind may be generating most of the moon's water." "But as the supply doesn't decrease even when the moon is shielded from solar winds, it suggests water builds up over time instead of raining directly down." SOURCES: NASA, Space https://www.nasa.gov/feature/goddard/2019/lro-sheds-light-on-lunar-water-movement https://www.space.com/water-on-the-moon-is-moving.html *** For story suggestions please contact tips@nextanimation.com.tw For technical and editorial support, please contact: Asia: +61 2 93 73 1841 Europe: +44 20 7542 7599 Americas and Latam: +1 800 738 8377



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