NASA study explains the existence of water on Moons lunar surface

17 Avril, 2019, 20:24 | Auteur: Therese Cote
  • Water spewed from Moon during meteor showers NASA

Providing a potential resource for future explorations, NASA on Monday revealed that water is released on the Moon during meteor showers. As a result, the lunar atmosphere is usually without water vapor.

However, a decade ago, trace amounts of water were discovered in the lunar non-polar areas, and recent observations by Cassini, Deep Impact, Lunar Prospector, and Chandrayaan-1 indicate the existence of an active water cycle on the Moon.

The remote robotic instrument was sent to the Moon to study the lunar orb's paper-thin atmosphere.

The incredible discovery was presented this week in the journal Nature Geosciences.

The water-releasing impacts occurred on January 9, April 2, April 5 and April 9 in 2014.

When the Apollo missions brought back samples from the moon, researchers analyzed them and found that the moon was formed without any native water.

"The Moon doesn't have significant amounts of H2O or OH in its atmosphere most of the time", said Richard Elphic, the LADEE project scientist at NASA's Ames Research Center in California's Silicon Valley.

The researchers suggested that meteoroid impacts kicked up these puffs of water from the moon, and said that four of these puffs were apparently caused by previously undetected meteoroid streams. "And then, when the event was over, the H2O or OH went away", Elphic said in a statement.

Lunar scientists often use the term "water" to refer to both H2O and OH. The LADEE spacecraft detects these water molecules as they enter the tenuous lunar atmosphere, with peaks in the water signal correlating to known meteor showers on Earth.

The 33 watery episodes that scientists spied via LADEE yield more detail, especially as they were spread across large swathes of the lunar surface.

United Kingdom parliament could suffer same fate as Notre Dame, warn MPs
Writing in the Bucks Free Press, he said: "several times in the past year , chunks of masonry have fallen off buildings". Mr Corbyn said the blaze at Notre Dame was "very, very sad" and warned that the fire risk was "huge" for Parliament.

India's Jet Airways faces imminent shutdown without emergency funds
TPG declined to comment, while the other three did not immediately respond to a request for comment from Reuters. But the immediate worry is the lack of funds to keep the company afloat.

Nantes-Halilhodzic: "Lille a fait un match exceptionnel"
Ils sont vexés donc il faut se méfier, ce n'est pas n'importe qui. En cas de victoire, Paris sera sacré en Loire-Atlantique.

The impacts hit soil which is dry 3 inches (8cm) deep underneath which is a layer with about 0.05 per cent water content which is spewed out on impact. The liberated water either escapes to space or is redeposited elsewhere on the Moon.

One explanation is ionised hydrogen carried to the Moon on solar winds from the Sun could explain the presence of water.

Below this, they calculate that water is uniformly present at concentrations up to about 0.05%. This concentration is much drier than the driest terrestrial soil.

"It is so dry that one would need to process more than a metric ton of regolith in order to collect 16 ounces of water". But there's no concrete explanation about the distribution of water and its quantity on the lunar surface.

In September 2017, experts created the first map of water and its building blocks trapped in the uppermost portion of the Moon's soil.

The amounts of water detected by the sensors were far too high to have come from the meteorites themselves or from vaporized soil, the researchers suggest.

Earlier models had predicted that meteoroid impacts could release water from the Moon as a vapour, but scientists hadn't yet observed the phenomenon.

The lunar expert said it dates back to the Moon's formation or was deposited there "early in its history".

NASA is leading a sustainable return to the Moon with commercial and global partners to expand human presence in space and bring back new knowledge and opportunities.

Conseillé:



Populaire

Tiger Woods va recevoir la plus haute distinction civile américaine
Mais Tiger Woods semble enfin loin de ses années galères, alors attention à lui lors des prochains tournois! Le Tigre s'est remis à rugir! Ce dernier détient aussi le record de victoire au Tournoi des Maîtres avec 6.

Hail, damaging winds possible as line of severe thunderstorms threaten Kansas City
A few isolated storms and some showers may develop prior to that, but the main wave of storms happens between 6 PM and 12 AM. The clouds are expected to clear out in time for Easter, with much warmer temperatures and sunnier skies.

Les prix augmentent en Europe — Netflix
Néanmoins, la plateforme de streaming n'a pas modifié le prix de son abonnement de base, laissant ce dernier à 7,99 euros par mois.

Tesla stoppe la vente en ligne du Model 3 à 35.000 dollars
Il y a quelque temps, Tesla avait annoncé vouloir arrêter la vente physique pour se consacrer au e-commerce. Finalement, la baisse de prix sera moitié moins importante, et bon nombre de boutiques resteront en place.

L'ex-président du Pérou a tenté de mettre fin à sa vie afin d'éviter son arrestation
Il a été conduit à l'hôpital Casimiro Ulloa. "Son état de santé est critique", a indiqué de son côté le ministère de Santé. Quant à la chef de file de l'opposition, Keiko Fujimori, elle a été placée en détention provisoire le 31 octobre.

Angry Ohio restaurant patron threw iguana at manager
Cooper was then handed over to the Lake County Humane Society, which will have one of its veterinarians examine him for injuries. The incident happened just before noon at the restaurant on Mentor Avenue near Nelson Street, police said .

Notre Dame fundraising efforts inspire people to donate to rebuild Louisiana churches
St Landry Parish Sheriff Bobby Guidroz said he believed his deputy was unaware of Holden Matthews' involvement in the fires. A pretrial hearing in the case was set for July 17, with jury selection scheduled to begin in the trial on September 10.

WEATHER FORECAST: Temperatures set to soar for Bank Holiday Weekend
The first was in Heathrow, west London, and Mildenhall, Suffolk, in 1949 and the second was recorded Wisley, Surrey, in 2011. There will also be a lot of dry weather, some cloud coming and going, so bright skies and sunny spells.

McLellan hired as Kings coach
His team has reached the Stanley Cup Playoffs seven times, including six of his first seven seasons with the Sharks. Yes, that is my Captain Obvious statement of the day after the John Stevens hire and the Willie Desjardins debacle.

Le cas Cavani ? Eric Rabesandratana le règle vite fait bien fait — PSG
Le "petit hibou" devrait être accompagné par Dani Alves, Leandro Paredes, Christopher Nkunku et Julian Draxler . On pourrait donc voir un PSG en 4-4-1-1 avec devant Areola une ligne Dagba-Silva-Kimpembe-Kurzawa.