vacation on the Moon: |Mond2020

Would you like to vacation on the Moon:

— -ice- (@icelefant) 29. Dezember 2015

"MoonMappers" |Shows Everyday

#Moon #Mond #Lunar

|Space |Science |Center's RebelMouse and thought you'd like it!
Ich habe ein @YouTube-Video von @cosmoquestx positiv bewertet:

 "MoonMappers" Shows Everyday:

  

Twitter: @icelefant

Love U on the Moon!

Love U on the Moon!:)

A small crater on the inner rim of Love U crater. LROC NAC M159114365R , image width is 580 meters 

[NASA/GSFC/Arizona State University].

quelle: Continue reading "Love U on the Moon!"

#NASA #LRO #LROC #Moon

14th PDS Release |LROC

LROC 14th PDS Release:

The 14th LROC Planetary Data System release includes images acquired between 2012-12-16 to 2013-03-15. This release contains 70,815 EDR images - totaling 7.79 TB, and 70,815 CDR images - totaling 16.09 TB.

Additionally, the LROC Team has been reprocessing data from early in the LRO mission. We have re-released Volume 1, 2 and 3 of the EDR and CDR data sets. Reprocessing will continue until Volumes 4 through 11 have been updated.

Continue reading "LROC 14th PDS Release"

Concentricity in Apollo Basin |Moon

Concentricity in Apollo Basin:

Portion of a concentric crater in Apollo Basin. Sun is incident from the right to the left. LROC NAC mosaic M1122245918LR, image width is 6.3 km 

[NASA/GSFC/Arizona State Univeristy].

Quelle: NASA

Small Bouldery Crater |Moon

#NASA #LROC #Moon #Lunar

A small crater sporting a healthy population of boulders and a higher reflectance surrounding ejecta blanket [LROC NAC M1120363462L, image width is 500 m 

[NASA/GSFC/Arizona State University].

Quelle:
Continue reading "Small Bouldery Crater"

Moon Impact |LROC

#NASA #LROC #Moon #Lunar #Impact

The twin GRAIL spacecraft impacted the Moon on 17 December 2012, LROC was able to image the impact craters on 28 February 2013 showing them both to be about 5 meters in diameter. Upper panels show the area before the impact; lower panels after the impact. Arrows point to crater locations

 [NASA/GSFC/Arizona State University].

LROC |Continue reading "Impact!"

Low Reflectance Deposits... |LROC

Low Reflectance Deposits on the Lassell Massif

Low reflectance deposits are seen along the margins of Lassell G and Lassell K (14.918°S; 351.065°E). NAC frame M1116585481R, illumination is overhead, north is up, image is ~1.8 km wide 

[NASA/GSFC/Arizona State University].

#NASA #GSFC #LROC #Mission

the Gruithuisen Domes |LROC

#LROC #Moon #NASA

An oblique view of the northern portion of the Gruithuisen Gamma volcanic dome. LROC NAC M1106087898LR, north is to the right 

[NASA/GSFC/Arizona State University].

Continue reading "New Views of the Gruithuisen Domes"

Schiaparelli E |Moon

#LROC #Moon #NASA

A recent impact in Oceanus Procellarum produced a spectacular, circular melt pond (27.126°N; 62.068°W).
NAC frame M176684041L, illumination is from the east, north is up, image is ~1.8 km wide 


[NASA/GSFC/Arizona State University].

Quelle:
LROC |Continue reading "Schiaparelli E"

Meanders in Posidonius |LROC

Small portion of a S-shaped meandering rille on the floor of Posidonius Crater (31.93°N, 29.85°E, 100 km diameter) - a floor-fractured crater. The curves in the rille are very tight. 

LROC NAC M1098658474R
[NASA/GSFC/Arizona State University].

Continue reading "Meanders in Posidonius"

Picard Crater |LROC Moon

Picard crater, at 14.55° N, 54.74° E, exposes a chemically distinct underlying basalt layer in Mare Crisium.

Cracks in a terrace on Picard crater's wall indicate the terrace was flooded with impact melt. The cracks probably formed during cooling of the impact melt as it solidified. LROC NAC M1107917713RE, image width is ~1300 m.

Quelle:
[NASA/GSFC/Arizona State University]

Continue reading "Picard Crater Impact Melt"

Pyroclastic Excavation |Moon

Explore the pyroclastics in the full LROC NAC frame, HERE!

An impact excavated low-reflectance pyroclastic formation, part of a landmark region of the Moon's nearside characterized by dark mantling deposits east of Copernicus. LROC Narrow Angle Camera (NAC) observation M170613335L,, LRO orbit 10277, September 14, 2011. Image field of view 418 meters, angle of incidence 13.03° at 0.49 meters resolution from 44.83 kilometers. View the larger 500 meter field of view in the LROC Featured Image HERE [NASA/GSFC/Arizona State University].

Lillian Ostrach

LROC News System

Some regions of the Moon exhibit dark mantling deposits that were formed by fire-fountain style eruptions, similar to Strombolian or some Hawaiian eruptions. Unlike the effusively emplaced mare basalts, pyroclastic eruptions were more energetic because the erupted material contained more volatiles and formed volcanic glass beads. In some cases, pyroclastics are found in small, localized areas, surrounding a vent such as in Alphonsus crater or in Schrödinger basin.

Today's Featured Image is located within a larger regional pyroclastic deposit (5.470°N, 352.014°E; low-reflectance material) south of Sinus Aestuum, and is centered on a small impact crater (~170 m diameter) that excavated fresh pyroclastic material from depth. Since this crater is located within a regional pyroclastic deposit, the freshly-exposed pyroclastics appear lower reflectance than the surrounding surface, possibly as a result of ejecta emplacement from impacts (both near and far afield) that deposited higher-reflectance material and mixed the regolith (impact gardening).

LROC Wide Angle Camera (WAC) monochrome mosaic centered on the regional pyroclastic deposits south of Sinus Aestuum and east of Copernicus. Asterisk notes location of the field of view highlighted at high resolution in the LROC Featured Image released June 7, 2012. View the larger context image HERE [NASA/GSFC/Arizona State Universi Understanding the distribution, extent, and thickness of pyroclastic deposits can help constrain the volcanic history of the Moon and answer questions regarding the volatile content of the early Moon. For example, Apollo 17 samples of pyroclastic glass from the Taurus-Littrow Valley confirmed that fire-fountain eruptions occurred on the Moon and that the glass beads were rich in titanium as well as small amounts of zinc and sulfur (volatiles). More recently, scientists have improved upon the measured values for volatiles, such as carbon dioxide, water, fluoride, sulfur, and chlorine, in the pyroclastic glasses returned from the Apollo missions. Isn't it amazing how much we can learn from the Apollo samples?

Related Posts:

Aristarchus Spectacular!

A Dark Cascade at Sulpicius Gallus

Up from the depths

Quelle:

Lunar Pioneer, LLP

The Lunar Century

Group News Traffic via Lunar Networks

http://lunarnetworks.blogspot.com

Tycho |The Other Side

Summit of Tycho crater central peak seen from west-to-east; the rough material on the floor of the crater in the upper right formed as a massive pool of impact melt solidified. LROC NAC M181286769L,R

[NASA/GSFC/Arizona State University].

Quelle:
#NASA, #JPL, #GSFC

Melt on a Rim

Impact melt started to flow back into the crater cavity before it solidified. Downslope is to the upper right, image width is 500 m, NAC M170205366L

[NASA/GSFC/Arizona State University].

Quelle:

Continue reading "Melt on a Rim"

Flow Boundary in Mare Imbrium |LROC

The same field of view at a slightly less inclined morning incidence angle (60.84°), LROC NAC M129452673R, orbit 4211, May 25, 2010, resolution 0.46 meters from 37.66 kilometers [NASA/GSFC/Arizona State University].

A small scarp is exposed in this high sunrise incidence angle (75.95°) Narrow Angle Camera frame, around 95 kilometers north by northeast of Mons La Hire in Mare Imbrium. The area to the east is raised relative to the area on the west of the scarp by as little as 10 meters. LROC NAC M177792062L, LRO orbit 11337, December 6, 2011; field of view 610 meters, resolution 0.6 meters per pixel from 43.86 kilometers. View the full-size LROC Featured Image HERE [NASA/GSFC/ArizonaState University].

Drew Enns

LROC News System

Today's Featured Image shows the boundary of a flow front in Mare Imbrium. Unlike other flows LROC has observed (granular, impact melt), these are lava flows! The flows are about 35 m thick, making them hard to observe unless the Sun is low and casting long shadows.

Apollo 15 imaged the flows early in the lunar morning, when the Sun was low on the horizon to help the low relief flows cast larger shadows!

Combining the observed geometric properties of these flows with viscosities calculated from the Apollo samples allow scientists to constrain how lava behaves on the Moon.

For context, the full, uncorrected approximate 2200 meter width of the field of view swept up in LROC NAC M129452673R. The area of interest is just left of center [NASA/GSFC/Arizona State University].

LROC Wide Angle Camera (WAC) context for the LROC Featured Image, released April 11, 2012 and narrowly focused near 30.593° N, 335.302° E. The WAC observation above was swept up from the orbiter during the same orbital pass as that of the Featured Image NAC frame. The large incidence angle brings out subtle changes in topography, enhancing the Imbrium lava flows. Image field of view is 35 kilometers. LROC WAC M177791761C (604nm), resolution 60 meters per pixel [NASA/GSFC/Arizona State University].

The Imbrium flows are fairly thick, and the WAC context shows them extending for at least 120 km, but the flows continue for several hundred kilometers. Should we expect this? Because the Moon's gravity is weaker than the Earth's, we can expect lunar lava flows to be ~1.7 times as thick as a terrestrial flow of similar length! 

Flows of similar length on Earth have only been observed in flood basalts, which are large volumes of lava that were erupted quickly. 

This correlation indicates that the lunar lava flows must have erupted quickly as well. Even so, these flows are some of the few examples still visible on the Moon's surface, and it is unclear how their thickness and extent relate to the majority of volcanism that filled in the large basins resulting in the maria.

Check out more lava related feature posts below and explore the lava flows in the full LROC NAC Featured Image, HERE.

Related Posts:

Layers near Apollo 15 landing site

Layering in Euler Crater

Old Man River of Lava

Lunar Pioneer, LLP

Quelle: #NASA #JPL

The Lunar Century

Group News Traffic via Lunar Networks

http://lunarnetworks.blogspot.com

Copernicus Crater |Moon

LROC Wide Angle Camera (WAC) visible to ultraviolet portrait of Copernicus crater, image 458 km wide 

[NASA/GSFC/Arizona State University].

Not so Simple!

A step is present in between a small crater's floor and rim. The crater also displays a high density of boulders on its surface. Image width is 330 m, LROC NAC M122700360L

[NASA/GSFC/Arizona State University].

Rim on a Rim

A small fresh crater is positioned on the rim of Hermann B crater. Material slides down the crater wall to the crater's center, creating small headscarps along the rim. Image width is 650 m, LROC NAC M117867678RE

 [NASA/GSFC/Arizona State University].

Outcrops in Laplace A |Moon

Debris flows and outcrops exposed in the walls of Laplace A crater. Illumination from southwest, image is ~525 m across, down-slope is to the right, LROC NAC M137725771R

[NASA/GSFC/Arizona State University].

Continue reading "Outcrops in Laplace A"