Nighttime Image of Texas Cities

From the site: One of the Expedition 36 crew members aboard the International Space Station, some 240 miles above Earth, used a 50mm lens to record this oblique nighttime image of a large part of the nation’s second largest state in area, including the four largest metropolitan areas in population. The extent of the metropolitan areas is easily visible at night due to city and highway lights. 

The largest metro area, Dallas-Fort Worth, often referred to informally as the Metroplex, is the heavily cloud-covered area at the top center of the photo. Neighboring Oklahoma, on the north side of the Red River, less than 100 miles to the north of the Metroplex, appears to be experiencing thunderstorms. The Houston metropolitan area, including the coastal city of Galveston, is at lower right. To the east near the Texas border with Louisiana, the metropolitan area of Beaumont-Port Arthur appears as a smaller blotch of light, also hugging the coast of the Texas Gulf. Moving inland to the left side of the picture one can delineate the San Antonio metro area. The capital city of Austin can be seen to the northeast of San Antonio. 

For larger sizes, visit the Nasa website: Nighttime Image of Texas Cities

All-American Salute

From NASA's Image of the Day Gallery



Astronaut John W. Young, commander of the Apollo 16 lunar landing mission, leaps from the lunar surface as he salutes the United States flag at the Descartes landing site during the first Apollo 16 extravehicular activity. Astronaut Charles M. Duke Jr., lunar module pilot, took this picture. The Lunar Module "Orion" is on the left. The Lunar Roving Vehicle is parked beside Orion and the object behind Young (in the shadow of the Lunar Module) is the Far Ultraviolet Camera/Spectrograph. Stone Mountain dominates the background of this lunar scene.

Image Credit: NASA

Light for the Ages

Today, our sun reaches its northernmost point in planet Earth's sky. Called a solstice, the date traditionally marks a change of seasons -- from spring to summer in Earth's Northern Hemisphere and from fall to winter in Earth's Southern Hemisphere.

In this image from 2007, NASA's Solar TErrestrial RElations Observatory (STEREO) satellites provided the first three-dimensional images of the sun. STEREO, a two-year mission that launched October 2006, provided a unique and revolutionary view of the Sun-Earth System.

Image Credit: NASA/JPL-Caltech/NRL/GSFC

Go For Launch!

Space shuttle Discovery gets prepped for flight—in just under four minutes.

Stellar Shrapnel

From NASA's Image of the Day Gallery

This composite image shows N49, the aftermath of a supernova explosion in the Large Magellanic Cloud. A new long observation from NASA's Chandra X-ray Observatory reveals evidence for a bullet-shaped object being blown out of debris field left over from an exploded star.

In order to detect this bullet, researchers used Chandra to observe N49 for more than 30 hours. Using the new Chandra data, the age of N49 -- as it appears in the image -- is thought to be about 5,000 years and the energy of the explosion is estimated to be about twice that of an average supernova. These preliminary results suggest that the original explosion was caused by the collapse of a massive star.

Image Credit: X-ray: NASA/CXC/Penn State/S. Park et al.
Optical: NASA/STScI/UIUC/Y.H. Chu & R. Williams et al.

Poised for Success

From NASA's Image of the Day Gallery

Anchored to the Canadarm2 mobile foot restraint, Garrett Reisman performed construction and maintenance activities outside the station during the STS-132 mission's first spacewalk. During the seven-hour, 25-minute spacewalk, Reisman and NASA astronaut Steve Bowen installed a second antenna for high-speed Ku-band transmissions and added a spare parts platform to Dextre, a two-armed extension for the station’s robotic arm.

Image Credit: NASA

This is such a great website not only for excellent wallpaper, but to keep up with the daily activity at the space station. This is, I believe, the last mission for the shuttle Atlantis, and the next few flights will also see the retirement of the rest of fleet.

I am extremely apprehensive about the future of US space endeavors. We misuse our national resources in so many ways, but the space program is - for the very most part - money well spent.

3-2-1 Lift Off

From the NASA Image of the Day Gallery



Space shuttle Discovery's engines ignited at 6:21 a.m. EDT Monday, April 5, for liftoff of the STS-131 mission from Launch Pad 39A at NASA's Kennedy Space Center. The seven-member crew will deliver the multi-purpose logistics module Leonardo, filled with supplies, a new crew sleeping quarters and science racks that will be transferred to the International Space Station's laboratories. The crew also will switch out a gyroscope on the station’s truss, install a spare ammonia storage tank and retrieve a Japanese experiment from the station’s exterior. STS-131 is the 33rd shuttle mission to the station and the 131st shuttle mission.

Image Credit: NASA/Troy Cryder

Endeavour Comes Home

From: NASA



With landing gear down, space shuttle Endeavour approaches the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida after 14 days in space, completing the 5.7-million-mile STS-130 mission. Endeavour landed at 10:20 p.m. EST on Sunday, Feb. 21, after delivering the new Tranquility node and its seven-window cupola to the International Space Station. Returning to Earth aboard Endeavour are Commander George Zamka; Pilot Terry Virts; and Mission Specialists Robert Behnken, Nicholas Patrick, Kathryn Hire and Stephen Robinson.

Credit: NASA

Shuttle Silhouette

In a very unique setting over Earth's colorful horizon, the silhouette of the space shuttle Endeavour is featured in this photo by an Expedition 22 crew member on board the International Space Station, as the shuttle approached for its docking on Feb. 9 during the STS-130 mission.

Image Credit: NASA

Shuttle Silhouette

On Launch Pad 39A

On Launch Pad 39A

The space shuttle Endeavour is seen after the rotating service structure is rolled back on Saturday, Feb. 6, 2010 at Launch Pad 39A of the NASA Kennedy Space Center in Cape Canaveral, Florida. Endeavour and the crew members of the STS-130 mission are set to launch on Sunday at 4:39 a.m. EST.

Image Credit: NASA/Bill Ingalls

Two Tails to Tell

Galaxy Cluster Has Two 'Tails' to Tell

Two spectacular tails of X-ray emission have been seen trailing behind a galaxy using the Chandra X-ray Observatory. A composite image of the galaxy cluster Abell 3627 shows X-rays from Chandra in blue, optical emission in yellow and emission from hydrogen light -- known to astronomers as 'H-alpha' -- in red. The optical and H-alpha data were obtained with the Southern Astrophysical Research (SOAR) Telescope in Chile.

At the front of the tail is the galaxy ESO 137-001. The brighter of the two tails has been seen before and extends for about 260,000 light years. The detection of the second, fainter tail, however, was a surprise to the scientists.

The X-ray tails were created when cool gas from ESO 137-001 (with a temperature of about ten degrees above absolute zero) was stripped by hot gas (about 100 million degrees) as it travels towards the center of the galaxy cluster Abell 3627. What astronomers observe with Chandra is essentially the evaporation of the cold gas, which glows at a temperature of about 10 million degrees. Evidence of gas with temperatures between 100 and 1,000 degrees Kelvin in the tail was also found with the Spitzer Space Telescope.

Galaxy clusters are collections of hundreds or even thousands of galaxies held together by gravity that are enveloped in hot gas. The two-pronged tail in this system may have formed because gas has been stripped from the two major spiral arms in ESO 137-001. The stripping of gas is thought to have a significant effect on galaxy evolution, removing cold gas from the galaxy, shutting down the formation of new stars in the galaxy, and changing the appearance of inner spiral arms and bulges because of the effects of star formation.

Image Credits: X-ray: NASA/CXC/UVa/M. Sun et al; H-alpha/Optical: SOAR/MSU/NOAO/UNC/CNPq-Brazil/M.Sun et al.

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Mission to Jupiter

From the NASA website:

With its suite of science instruments, Juno will investigate the existence of a solid planetary core, map Jupiter's intense magnetic field, measure the amount of water and ammonia in the deep atmosphere, and observe the planet's auroras.

Juno’s principal goal is to understand the origin and evolution of Jupiter. Underneath its dense cloud cover, Jupiter safeguards secrets to the fundamental processes and conditions that governed our solar system during its formation. As our primary example of a giant planet, Jupiter can also provide critical knowledge for understanding the planetary systems being discovered around other stars.

This artist's concept shows the Juno spacecraft in orbit around the planet Jupiter.

Download this image as wallpaper at: NASA's Image of the Day Gallery

Shuttle Edutation

Regular visitors to this blog know I like to post the best of the NASA photos I get daily in my Google reader. Today's photo isn't a spectacular image of the shuttle taking off, nor is it a glorious photo of the universe from the Hubble telescope. No, it's a rather boring shot of a few astronauts watching a technician demonstrate the maintenance of space shuttle Endeavour's thermal protection system.

What I found amusing was the title of the post, and I got a screenshot of it in case NASA decides to change it:



I guess it doesn't take a rocket scientist to work on the NASA website.

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UPDATE: Just noticed they've changed it.

Earth's Moon

From the NASA website:

During its mission, the Galileo spacecraft returned a number of images of Earth's only natural satellite. Galileo surveyed the moon on Dec. 7, 1992, on its way to explore the Jupiter system in 1995-1997.

This color mosaic was assembled from 18 images taken by Galileo's imaging system through a green filter. On the upperleft is the dark, lava-filled Mare Imbrium, Mare Serenitatis (middle left), Mare Tranquillitatis (lower left), and Mare Crisium, the dark circular feature toward the bottom of the mosaic. Also visible in this view are the dark lava plains of the Marginis and Smythii Basins at the lower right. The Humboldtianum Basin, a 400-mile impact structure partly filled with dark volcanic deposits, is seen at the center of the image.

Image Credit: NASA/JPL/USGS

A Partial View

Backdropped by the blackness of space, a partial view of Space Shuttle Atlantis' payload bay, vertical stabilizer, orbital maneuvering system pods and docking mechanism are featured in this image photographed by the STS-129 crew from an aft flight deck window.

Image Credit: NASA

Awaiting the Mission

Awaiting the Mission

Space shuttle Atlantis is seen on Launch Pad 39a of the NASA Kennedy Space Center shortly after the rotating service structure was rolled back, Sunday, Nov. 15, 2009, Cape Canaveral, FL. Atlantis is scheduled to launch at 2:28p.m. EST on the STS-129 mission to the International Space Station on Monday, Nov. 16, 2009.

Image Credit: NASA/Bill Ingalls

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Fantastic wallpaper! Visit the site for larger sizes.

Andromeda in Ultraviolet

From NASA:

In a break from its usual task of searching for distant cosmic explosions, NASA's Swift satellite acquired the highest-resolution view of a neighboring spiral galaxy ever attained in the ultraviolet. The galaxy, known as M31 in the constellation Andromeda, is the largest and closest spiral galaxy to our own. This mosaic of M31 merges 330 individual images taken by Swift's Ultraviolet/Optical Telescope. The image shows a region 200,000 light-years wide and 100,000 light-years high (100 arcminutes by 50 arcminutes).

Image Credit: NASA/Swift/Stefan Immler (GSFC) and Erin Grand (UMCP)

Black Holes Go 'Mano a Mano'

From NASA:

This image of NGC 6240 contains new X-ray data from Chandra (shown in red, orange, and yellow) that has been combined with an optical image from the Hubble Space Telescope originally released in 2008. In 2002, Chandra data led to the discovery of two merging black holes, which are a mere 3,000 light years apart. They are seen as the bright point-like sources in the middle of the image. Scientists think these black holes are in such close proximity because they are in the midst of spiraling toward each other -- a process that began about 30 million years ago. It is estimated that they holes will eventually drift together and merge into a larger black hole some tens or hundreds of millions of years from now.

Finding and studying merging black holes has become a very active field of research in astrophysics. Since 2002, there has been intense interest in follow-up observations of NGC 6240, as well as a search for similar systems. Understanding what happens when these exotic objects interact with one another remains an intriguing question for scientists. The formation of multiple systems of supermassive black holes should be common in the universe, since many galaxies undergo collisions and mergers with other galaxies, most of which contain supermassive black holes.

It is thought that pairs of massive black holes can explain some of the unusual behavior seen by rapidly growing supermassive black holes, such as the distortion and bending seen in the powerful jets they produce. Also, pairs of massive black holes in the process of merging are expected to be the most powerful sources of gravitational waves in the Universe.

Image Credits: X-ray: NASA/CXC/MIT/C.Canizares, M.Nowak; Optical: NASA/STScI

The Heart of Darkness

From NASA:

Some of the coldest and darkest dust in space shines brightly in this infrared image from the Herschel Observatory, a European Space Agency mission with important participation from NASA. The image is a composite of light captured simultaneously by two of Herschel's three instruments -- the photodetector array camera and spectrometer with its spectral and photometric imaging receiver.

The image reveals a cold and turbulent region where material is just beginning to condense into new stars. It is located in the plane of our Milky Way Galaxy, 60 degrees from the center. Blue shows warmer material, red the coolest, while green represents intermediate temperatures. The red filaments are made up of the coldest material pictured here -- material that is slightly warmer than the coldest temperature theoretically attainable in the universe.

Image Credit: ESA/NASA/JPL-Caltech

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Pit Stop in Amarillo

The space shuttle Discovery, piggyback atop a specially modified 747, makes a stop in Amarillo to refuel the plane carrying it.



Video at Amarillo.com

Some great photos at Panhandle Skies.