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Baby Stars in the Witch Head Nebula August 21, 2006

Posted by jtintle in Spitzer Space Telescope (SST), Deep Space, JPL, NASA, Nebula, Satellite, Space Agencies, Space Fotos, Witch Head Nebula.
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image

Credit:

NASA/JPL-Caltech/L.Rebull (SSC/ Caltech)

Description:

Eight hundred light-years away in the Orion constellation, a gigantic murky cloud called the “Witch Head” nebula is brewing baby stars. The stellar infants are revealed as pink dots in this image from NASA’s Spitzer Space Telescope. Wisps of green in the cloud are carbon-rich molecules called polycyclic aromatic hydrocarbons, which are found on barbecue grills and in automobile exhaust on Earth. This image was obtained as part of the Spitzer Space Telescope Research Program for Teachers and Students, involving high school teachers and their students from across the United States. The infrared image is a three-color composite, in which light with a wavelength of 4.5 microns is blue, 8.0-micron light is green, and 24-micron light is red.

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Stirred-up Saturn June 30, 2006

Posted by jtintle in Cassini, JPL, NASA, Planets, Satellite, Saturn, Space Agencies, Space Fotos, Space Science Institute.
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Stirred-up Saturn

Image Credit:
NASA/JPL/Space Science Institute

Description:

A great vortex rolls through high southern latitudes on Saturn, whirling twisted contours into the clouds. The ringed planet’s uppermost clouds are thought to be composed largely of ammonia ice overlying deeper layers of ammonium hydrosulfide and water clouds.

The image was taken with the Cassini spacecraft narrow-angle camera on May 13, 2006 at a distance of approximately 2.8 million kilometers (1.8 million miles) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 143 degrees. The image was obtained using a spectral filter sensitive to wavelengths of infrared light centered at 938 nanometers. Image scale is 17 kilometers (10 miles) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA’s Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov/home/index.cfm. The Cassini imaging team homepage is at http://ciclops.org.

Cassini at the Half June 29, 2006

Posted by jtintle in Cassini, European Space Agency, JPL, NASA, Planets, Satellite, Saturn, Space Agencies, Space Fotos.
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The Moving Moons of Saturn June 26, 2006

Posted by jtintle in APoD, Cassini, Enceladus, European Space Agency, JPL, Mimas, NASA, Planets, Rhea, Satellite, Saturn, Space Agencies, Space Fotos, Space Science Institute, SSI, Website.
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See Explanation.  Clicking on the picture will download  the highest resolution version available.
Credit:

Cassini Imaging Team, SSI, JPL, ESA, NASA

Explanation:

The moons of Saturn never stop. A space traveler orbiting the ringed giant planet would witness a continuing silent dance where Saturn’s multiple moons pass near each other in numerous combinations. Like a miniature Solar System, the innermost moons orbit Saturn the fastest. The above movie was centered on Saturn’s moon Rhea, so that the moons Mimas and Enceladus appear to glide by. At 1,500 kilometers across, Rhea is over three times larger than the comparably sized Mimas and Enceladus. The Sun illuminates the scene from the lower right, giving all of the moons the same crescent phase. The above time lapse movie was created by the Saturn-orbiting robotic Cassini spacecraft over a period of about 40 minutes.

Galle Bedding 3_D June 20, 2006

Posted by jtintle in JPL, Mars, Mars Global Surveyor, NASA, Planets, Space Agencies, Space Fotos, Spacecraft.
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Galle Bedding 3_D

Credit:

NASA/JPL/Malin Space Science Systems

Description:

This is a "3-D" stereo anaglyph showing layers in Galle Crater. It is a view of a portion of the same location featured in a mosaic yesterday, 15 June 2006, entitled "Galle Bedding." To see the layers in three dimensions, one must use "3-D" glasses with a red left eye and a blue right eye. This anaglyph uses two Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) images acquired at slightly different viewing angles: MOC images E22-01557 and M14-02055. Owing to the specifics of the viewing geometry, the image is tilted on its side, relative to the mosaic shown in the 15 June 2006 release. In other words, in this image, north is toward the right and west is up. This anaglyph, when viewed in conjunction with the 15 June 2006 mosaic of these layers, provides a more complete sense of the cross-cutting relations between layers in the mound located in southern "Galle (Happy Face) Crater." The layers are part of a mound of sedimentary rock in southern Galle — a remnant of a once more-extensive deposit of sedimentary material in this south mid-latitude impact basin.

Location near: 52.3°S, 30.1°W
Image width: ~7.3 km (~4.5 mi)
Illumination from: upper right
Anaglyph from MOC images: E22-E22-01557 and M14-02055

Mars at Ls 66°: Acidalia/Mare Erythraeum June 15, 2006

Posted by jtintle in JPL, Mars, Mars Global Surveyor, NASA, Planets, Space Agencies, Space Fotos, Space Science Institute, Spacecraft.
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This MOC image shows the Acidalia/Mare Erythraeum face of Mars at Ls 66° in mid-June 2006

Credit:

NASA/JPL/Malin Space Science Systems

Description:

 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 66° during a previous Mars year. This month, Mars looks similar, as Ls 66° occurs in mid-June 2006. The picture shows the Acidalia/Mare Erythraeum face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn.

Season: Northern Spring/Southern Autumn

Saturn Aslant June 15, 2006

Posted by jtintle in Cassini, JPL, NASA, Planets, Satellite, Saturn, Space Agencies, Space Fotos, Space Science Institute.
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Saturn Aslant

Credit:

NASA/JPL/Space Science Institute 

Description:

This oblique view of Saturn shows what may be localized upwellings in the clouds of Saturn's southern hemisphere. Although the contrast is low, a vortex is visible near lower right.

This view looks toward the unlit side of the rings.

The image was taken using a spectral filter sensitive to wavelengths of infrared light centered at 938 nanometers. The image was obtained using the Cassini spacecraft narrow-angle camera on May 8, 2006 at a distance of approximately 2.8 million kilometers (1.8 million miles) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 152 degrees. Image scale is 17 kilometers (10 miles) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov/home/index.cfm. The Cassini imaging team homepage is at http://ciclops.org.

A Sight to Behold June 11, 2006

Posted by jtintle in Cassini, JPL, NASA, Planets, Satellite, Saturn, Space Agencies, Space Fotos, Space Science Institute, SSI, Titan.
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This view was taken from above the ringplane and looks toward the unlit side of the rings. Here, the probe gazes upon Titan in the distance beyond Saturn and its dark and graceful rings

Credit:

NASA/JPL/Space Science Institute

Description:

Cassini's "eyes" — its powerful imaging cameras — bear witness to the majestic and spectacular sights of the Saturn system, as this views attests. Here, the probe gazes upon Titan (5,150 kilometers, or 3,200 miles across) in the distance beyond Saturn and its dark and graceful rings.

This view was taken from above the ringplane and looks toward the unlit side of the rings.

The image was taken using a spectral filter sensitive to wavelengths of infrared light centered at 938 nanometers. The image was obtained using the Cassini spacecraft narrow-angle camera on May 10, 2006 at a distance of approximately 2.9 million kilometers (1.8 million miles) from Saturn and 4.1 million kilometers (2.6 million miles) from Titan. The image was taken at a Sun-Saturn-spacecraft, or phase, angle of 149 degrees. Image scale is 17 kilometers (11 miles) per pixel on Saturn.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.

Dusty Death of a Massive Star June 7, 2006

Posted by jtintle in Spitzer Space Telescope (SST), Chandra X-ray Observatory, Deep Space, JPL, NASA, Small Magellanic Cloud, Space Fotos, Supernova.
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Dusty Death of a Massive Star
Mission: Hubble Space Telescope (HST)
Spitzer Space Telescope (SST)
Spacecraft: Hubble Space Telescope
Spitzer Space Telescope (SST)
Chandra X-ray Telescope
Instrument: Infrared Array Camera (IRAC)
Multiband Imaging Photometer (MIPS)
Product Size: 1778 samples x 1778 lines
Produced By: California Institute of Technology
Full-Res TIFF: PIA08516.tif (9.498 MB)
Full-Res JPEG: PIA08516.jpg (553.1 kB)

Credit:

NASA/JPL-Caltech/ UC Berkeley

Description:

Click here for poster version of PIA08516 Click here for Visible-Light Image
Dusty Supernova Remnant Poster
Figure 1
X-ray, Visible, Infrared
Figure 2

The supernova remnant1E0102.2-7219 (see inset in figure 1) sits next to the nebula N76 in a bright, star-forming region of the Small Magellanic Cloud, a satellite galaxy to our Milky Way galaxy located about 200,000 light-years from Earth. A supernova remnant is made up of the messy bits and pieces of a massive star that exploded, or went supernova. The image on the right shows glowing dust grains in three wavelengths of infrared radiation: 24 microns (red) measured by the multiband imaging photometer aboard NASA’s Spitzer Space Telescope; and 8.0 microns (green) and 3.6 microns (blue) measured by Spitzer’s infrared array camera. The red bubble is a dust envelope around the supernova remnant E0102, which is being heated by the shock wave created in the explosion of the remnant’s massive progenitor star some 1,000 years ago. Most of the blue stars are in the Small Magellanic Cloud, though some are in our own galaxy.

The close-up of E0102 (figure 2) is a composite of the infrared observations by Spitzer (red), an optical image (0.5 microns) captured by NASA’s Hubble Space Telescope (green), and X-ray measurements by NASA’s Chandra X-ray Observatory (blue). The X-ray ring is generated when the reverse shock slams into stellar material that was expelled during the explosion

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Alluvial Fan, China June 6, 2006

Posted by jtintle in Advanced Spaceborne Thermal Emission and Reflection Rad, ASTER, China, Earth, JPL, NASA, Planets, Space Agencies, Space Fotos.
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Alluvial Fan, China

Credit:

ASTER, NASA, JPL

Description:

A vast alluvial fan blossoms across the desolate landscape between the Kunlun and Altun mountain ranges that form the southern border of the Taklimakan Desert in China's XinJiang Province

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