... December 24, 1998 . Mars Climate Orbiter Launches . Credit: Courtesy NASA . Explanation: Looking down from atop a Delta II rocket blasting skyward , solid fuel boosters fall away (left) and the Earth's limb slides into view. These pictures from the launch of the Mars Climate Orbiter were taken as it climbed away from Cape Canaveral Air Station Space Launch Complex 17 on December 11. ... About APOD > . ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... Southern Mars . 2.12.1999 . ... Massive stars -- upwards of tens of times the mass of the Sun - profoundly affect their galactic environment. Churning and mixing the clouds of gas and dust between the stars, they leave their mark on the compositions and locations of future generations of stars and star systems. ... This star, though, somehow ejects energetic "bullets" of high-energy particles, appearing as red streaks toward the lower right of the this image. ... Runaway Star . ... 1999 2000 . ...

... Data Analysis SAS News What is SAS? ... Size of the visibility bins . ... In order to determine the visibility, the sky is divided into bins of approximately equal solid angle. ... The number of bins per strip is: Strips 0 to 2: 180 bins Strips 3 to 7: 175 bins Strips 8 to 12: 170 bins Strips 13 to 17: 155 bins Strips 18 to 22: 140 bins Strips 23 to 27: 115 bins Strips 28 to 32: 90 bins Strips 33 to 37: 60 bins Strips 38 to 42: 30 bins Strips 43 to 44: 5 bins Strips 45: 1 bin . ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... WISE is achieving 5sigma point source sensitivities better than 0.08, 0.11, 1, and 6 mJy in unconfused regions on the ecliptic in bands centered at wavelengths of 3.4, 4.6, 12, and 22 mum. ... The WISE All-Sky Release Source Catalog is available in compressed (gzip or bzip2) ascii form. ... Users should be aware that the Catalog table is extremely large. ... For complete documentation of the WISE All-Sky Release Source Catalog and the All-Sky Data Release, please see the Explanatory Supplement . ...