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Click here to visit Original posting As if surrounded by a celestial halo, space shuttle Discovery made its way towards the expansive confines of NASA Kennedy Space Center’s Vehicle Assembly Building following a move from its processing hangar on Sept. 9, 2010. A metal sling will be carefully connected to the spacecraft and then operators will hoist it from transfer aisle to the high reaches of the 52-story building before lowering it into place beside the external fuel tank and twin solid rocket boosters. Crews then will connect the spacecraft giving the stack its familiar launch day form. Discovery is targeted to liftoff on the 11-day STS-133 mission on Nov. 1 at 4:40 p.m. EDT. Image Credit: Jen Scheer
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Click here to visit Original posting Filled with trash and discarded items, the unpiloted ISS Progress 38 supply vehicle departed from the International Space Station at 7:22 a.m. (EDT) on Aug. 31, 2010. Russian flight controllers conduct thruster tests with the Progress to gather engineering data until it deorbited and burned up in Earth’s atmosphere over the Pacific Ocean. Its departure cleared the way for the arrival of the next Russian resupply vehicle, ISS Progress 39, which launched Sept. 8 and will dock Sept. 10, delivering 2.5 tons of food, fuel and supplies for the Expedition 24 crew. Image Credit: NASA
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Click here to visit Original posting The Fourmile Canyon Fire continued to burn west of Boulder, Colo., in this image taken on Sept. 7, 2010, casting a long line of smoke to the east that was visible from NASA’s Aqua satellite in its orbit around the Earth. MODIS, the Moderate Resolution Imaging Spectroradiometer, on NASA’s Aqua satellite captured this natural-color image of the fire at 2:40 p.m. local time (20:40 UTC) on Sept. 7. The red outline corresponds with the unusually high surface temperatures associated with an active fire. The thick smoke plume flows eastward. Over the plains northeast of Denver, the smoke plume casts a shadow to the north. By early morning on Sept. 8, thousands of people had abandoned their homes while the battle against the blaze continued. Image Credit: NASA/MODIS
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Click here to visit Original posting This image from the GOES-13 satellite, taken at 10:32 a.m. EDT on Sept. 3, shows a huge Hurricane Earl northeast of North Carolina with cloud cover stretching over the northeastern U.S. A disorganized Tropical Storm Fiona is located in the bottom right of this image. Image Credit: NASA/NOAA Goes Project
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Click here to visit Original posting The sands of time are running out for the central star of this the Hourglass Nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a sun-like star’s life occurs as its outer layers are ejected and its core becomes a cooling, fading white dwarf. In 1995, astronomers used the Hubble Space Telescope to make a series of images of planetary nebulae, including the one above. Here, delicate rings of colorful glowing gas (nitrogen-red, hydrogen-green, and oxygen-blue) outline the tenuous walls of the ‘hourglass.’ The unprecedented sharpness of Hubble’s images revealed surprising details of the nebula ejection process and may resolve the outstanding mystery of the variety of complex shapes and symmetries of planetary nebulae. Image Credit: NASA, WFPC2, HST, R. Sahai and J. Trauger (JPL)
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Click here to visit Original posting The Expedition 24 crew on the International Space Station photographed this image of polar mesospheric clouds illuminated by an orbital sunrise. Polar mesospheric, or noctilucent (“night shining”), clouds usually are seen at twilight, following the setting of the sun below the horizon and darkening of Earth’s surface. Occasionally the station’s orbital track becomes nearly parallel to Earth’s day/night terminator for a time, allowing the clouds to be visible to the crew at times other than the usual twilight because of the station’s altitude. This photograph shows polar mesospheric clouds illuminated by the rising, rather than setting, sun at center right. Low clouds on the horizon appear yellow and orange, while higher clouds and aerosols are illuminated a brilliant white. Polar mesospheric clouds appear as light blue ribbons extending across the top of the image. The station was located over the Greek island of Kos in the Aegean Sea (near the southwestern coastline of Turkey) when the image was taken at approximately midnight local time. The orbital complex was tracking northeastward, nearly parallel to the terminator, making it possible to observe an apparent “sunrise” located almost due north. A similar unusual alignment of the ISS orbit track, terminator position and seasonal position of Earth’s orbit around the sun allowed for this striking imagery of over the Southern Hemisphere. Image Credit: NASA
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Click here to visit Original posting Backdropped by red hills, the Development Motor-2, or DM-2, ignites during an Aug. 31, 2010, static test that was conducted by ATK Aerospace Systems in Promontory, Utah. DM-2, the largest and most powerful solid rocket motor designed for flight, is managed by the Ares Projects Office at NASA’s Marshall Space Flight Center in Huntsville, Ala. Image Credit: NASA
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Click here to visit Original posting The current Geostationary Operational Environmental Satellite GOES-13 captured this image of Hurricane Danielle heading for the north Atlantic (top center), Hurricane Earl with a visible eye hitting the Leeward Islands (left bottom) and a developing tropical depression 8 (lower right) at 1:45 p.m. EDT on Aug. 30. Image Credit: NASA/NOAA GOES Project
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Click here to visit Original posting Spiral galaxy NGC 4921 presently is estimated to be 320 million light years distant. This image, taken by the Hubble Space Telescope, is being used to identify key stellar distance markers known as Cepheid variable stars. The magnificent spiral NGC 4921 has been informally dubbed anemic because of its low rate of star formation and low surface brightness. Visible in the image are, from the center, a bright nucleus, a bright central bar, a prominent ring of dark dust, blue clusters of recently formed stars, several smaller companion galaxies, unrelated galaxies in the far distant universe, and unrelated stars in our Milky Way Galaxy. Image Credit: NASA, ESA, K. Cook (LLNL)
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Click here to visit Original posting Is this one galaxy or two? Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object. On the outside is a ring dominated by bright blue stars, while near the center lies a ball of much redder stars that are likely much older. Between the two is a gap that appears almost completely dark. How Hoag’s Object formed remains unknown, although similar objects have been identified and collectively labeled as a form of ring galaxy. Genesis hypotheses include a galaxy collision billions of years ago and the gravitational effect of a central bar that has since vanished. This image, taken by the Hubble Space Telescope in July 2001, reveals unprecedented details of Hoag’s Object and may yield a better understanding. Hoag’s Object spans about 100,000 light years and lies about 600 million light years away toward the constellation of the Snake (Serpens). Coincidentally, visible in the gap (at about one o’clock) is yet another ring galaxy that likely lies far in the distance. Image Credit: NASA, R. Lucas (STScI/AURA)
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