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NASA Image of the Day

Solar Dynamics Observatory Captures Images of Lunar Transit
29 Jul 2014
Solar Dynamics Observatory Captures Images of Lunar Transit
On July 26, 2014, from 10:57 a.m. to 11:42 a.m. EDT, the moon crossed between NASA?s Solar Dynamics Observatory (SDO) and the sun, a phenomenon called a lunar transit. A lunar transit happens approximately twice a year, causing a partial solar eclipse that can only be seen from SDO's point of view. Images of the eclipse show a crisp lunar horizon, because the moon has no atmosphere that would distort light. This image shows the blended result of two SDO wavelengths - one in 304 wavelength and another in 171 wavelength. Image Credit: NASA/SDO




THEMIS Image of the Day
Daily images from the Mars Odyssey THEMIS instrument.

Hrad Vallis
29 Jul 2014

Colles
28 Jul 2014


HubbleSite
The definitive source of information about the Hubble Space Telescope
24 Jul 2014
Latest Picture from Hubble!

Hubble Finds Three Surprisingly Dry Exoplanets




RedOrbit Images Of The Day - Mars
Cerberus Fissures
Cerberus Fissures
29 Jul 2014
This image shows a part of the Cerberus Fossae, a system of aligned fissures east of Elysium.

The fissures were probably the source of floods of both water and lava. The most recent event was a massive outpouring of basaltic lava (a fluid-type of lava like that commonly erupted by Kilauea in Hawaii), which produced a host of volcanic features in the region, as described by Jaeger et al. (2007).

Here, as at other locations, the fossae appear a striking blue in HiRISE false color. Blue tones are usually associated with basaltic rock. The blue ripples found on the trough floor could be wind-blown sand comprised of fine fragments of basalt. The upper plains are a relatively bland tone, perhaps due to a thin coating of dust; however, impact craters in the image also show bluish boulders and ripples, indicating that they have excavated the same basaltic rock layers cut by the fossae. This is typical of the region, as floods of lava coat much of the area.

The mesas of older rock just north of the fissures are remnants of a former surface, now eroded. The surrounding region has many knobs and larger protruding topography, which may be remnants of the same materials. The topmost layer in each mesa is very resistant to weathering, as in places it actually overhangs the lower rocks. This cap layer could be solidified lava, although it appears somewhat bland in color.

Although the mesa is clearly eroded and the cap rock breaks up into boulders, few rocks are visible at the bottom of the slope. The lava plains may have buried the former basal slope, or debris may have been swept away by lava or floodwater, that could also have contributed to eroding the mesa.

Written by: Colin Dundas

Credit: NASA/JPL/University of Arizona





RedOrbit Images Of The Day - Universe
Comet Catalina
Comet Catalina
29 Jul 2014
NASA\'s Jet Propulsion Laboratory manages the NEOWISE mission for NASA\'s Science Mission Directorate in Washington. The Space Dynamics Laboratory in Logan, Utah, built the science instrument. Ball Aerospace & Technologies Corp. of Boulder, Colo., built the spacecraft. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.

Credit: NASA/JPL-Caltech

> More Information





APOD
A Sky Portal in New Zealand

To some, it may look like a portal into the distant universe. To some, it may look like a portal into the distant universe.






Fourmilab.ch



Flight Image of the Day
All new AH-6i
2 May 2014

Fresh goods from Boeing here, a lovely shot of the production configured version of the AH-6i making its maiden flight.

AH6i 1000

Boeing





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News Photos
ESA Top Multimedia
ATV Georges Lematre ready for launch
29 Jul 2014

Ariane 5 flight VA219, which is set to carry ATV Georges Lematre into orbit, on the launch pad, on 28 July 2014.

ATV-5 is set to carry almost 6.6 tonnes of supplies to the International Space Station, including a record amount of dry cargo ? around 2682 kg. 

Launch of the fifth  Automated Transfer Vehicle, ATV-5, from Europe's Spaceport in Kourou, French Guiana, is scheduled for 23:47 UTC on 29 July (01:47 CEST; 30 July).



Transfer of Ariane 5 flight VA219 from the BAF to the launch pad
28 Jul 2014

Ariane 5 flight VA219, which is set to carry ATV Georges Lematre into orbit, during transfer from the BAF (Final Assembly Building) to the launch pad, on 28 July 2014.

ATV-5 is set to carry almost 6.6 tonnes of supplies to the Station, including a record amount of dry cargo ? around 2682 kg. 

Launch of the fifth  Automated Transfer Vehicle, ATV-5, from Europe's Spaceport in Kourou, French Guiana, is scheduled for 23:47 UTC on 29 July (01:47 CEST; 30 July).



Ariane 5 in the BAF ready for transfer to the launch pad
28 Jul 2014

Ariane 5 flight VA219, which is set to carry ATV Georges Lematre into orbit, in the BAF (Final Assembly Building) ready for transfer to the launch pad, on 28 July 2014.

ATV-5 is set to carry almost 6.6 tonnes of supplies to the Station, including a record amount of dry cargo ? around 2682 kg. 

Launch of the fifth  Automated Transfer Vehicle, ATV-5, from Europe's Spaceport in Kourou, French Guiana, is scheduled for 23:44 UTC on 29 July (01:44 CEST; 30 July).



A final view of ATV Georges Lematre
28 Jul 2014

A final view of ATV Georges Lematre through a hatch in the payload fairing atop the Ariane 5 launcher, in the BAF (Final Assembly Building), on 26 July 2014.

Launch of the fifth Automated Transfer Vehicle, ATV-5, from Europe's Spaceport in Kourou, French Guiana, is scheduled for 23:44 UTC on 29 July (01:44 CEST; 30 July).

ATV-5 is set to carry almost 6.6 tonnes of supplies to the Station, including a record amount of dry cargo ? around 2682 kg. 



Nearby M33 galaxy blossoming with star birth
28 Jul 2014

The spiral galaxy M33, also known as  the Triangulum Galaxy, is one of our closest cosmic neighbours, just three million light-years away. Home to some forty billion stars, it is the third largest in the Local Group of galaxies after the Andromeda Galaxy (M31) and our own Milky Way.

M33 is popular with astrophotographers and from exceptionally dark sites it can even be seen with the naked eye. Thanks to its orientation, we can enjoy a face-on view of the beautiful spiral structure of the galaxy's disc.

This image, from ESA's Herschel space observatory, shows M33 in far-infrared light, revealing the glow of cosmic dust in the interstellar medium that permeates the galaxy. The patchy, disorganised structure of M33's spiral arms resembles a tuft of wool, leading astronomers to classify it as a flocculent spiral galaxy. 

The brightest spots sprinkled along the spiral arms are dense pockets of gas and dust where massive stars are born. The most prominent of these is NGC604, visible in the upper left spiral arm. This is an enormous star-forming region where hundreds of thousands of stars are taking shape.

The image is a composite of the wavelengths: 70 microns (blue), 100 microns (green) and 160 microns (red). At the shortest wavelengths, astronomers trace warmer dust, revealing individual regions of star formation and parent clouds. At longer wavelengths, they detect emission from colder dust, outlining some of the cool dust reservoir along the galaxy?s winding spiral arms. This is where stars may be born in the future.

The image spans about one degree on each side; north is up and east is to the left. The data were collected with Herschel's PACS instrument as part of the Herschel M33 extended survey (HerM33es) Key Programme to study the star formation in the Triangulum Galaxy.



Comet on 27 July 2014 - NavCam
28 Jul 2014

Full-frame NAVCAM image taken on 27 July 2014 from a distance of about 2540 km from comet 67P/Churyumov-Gerasimenko. The image has been processed using an interpolation technique and the resolution has been increased from 1024 x 1024 to 10240 x 10240 pixels.




NASACast Video
NASA EDGE: OCO-2 Launch
NASA EDGE webcasts live from Vandenberg AFB for the launch of the Orbiting Carbon Observatory-2 (OCO) launch.
25 Jul 2014


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