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    Camel Leopards and Comets

    Camelopardalis. It’s a strange-sounding name for a constellation, coming from the Greco-Roman word for giraffe, or “camel leopard”. The October Camelopardalids are a collection of faint stars that have no mythology associated with them — in fact, they didn’t begin to appear on star charts until the 17th century. Even experienced amateur astronomers are hard-pressed …

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    Only 14 Million Miles Away!

    The skies were clear over New Mexico last night — Oct. 6, 2010 — so Rhiannon Blaauw of NASA’s Meteoroid Environment Office, Marshall Space Flight Center, Huntsville, Ala., captured this image of Comet Hartley 2 at a distance of “only” about 14 million miles from Earth.Hartley 2 has passed out of the constellation Cassiopeia and …

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    Comet Hartley 2 Seen in Cassiopeia

     In this image taken on the evening of  Friday, Oct. 1, Comet Hartley 2 can be seen in the constellation Cassiopeia (north-east sky, not far from horizon). Hartley 2 will only be in Cassiopeia for a few more day before traveling through the constellation Perseus. It’s a Jupiter Family Comet that we can’t see right now because it’s too tiny at …

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    Fireball in the Sky!

    It was brief, but it was brilliant! On Saturday, Oct. 2, 2010 at approximately 8:50 p.m. CDT, cameras operated by NASA’s Meteoroid Environment Office at Marshall Space Flight Center in Huntsville, Ala., recorded a slow moving fireball moving from the north to the southwest.  Enhanced-color image of Alabama fireball meteor. The fireball was moving approximately 35,300 mph (15.8 …

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    Odds & Ends: Earth from the Moon

    North and South America, August 9, 2010. Full Caption By Mark Robinson, LROC Team. As LRO orbits the Moon every two hours sending down a stream of science data, it is easy to forget how close the Moon is to the Earth. The average distance between the two heavenly bodies is just 384,399 km (238,854 […]

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    Here Comes Comet Hartley 2!

    A pale green interloper among the stars of Cassiopeia, Comet Hartley 2 shines in this four-minute exposure taken on the night of Sept. 28, 2010, by NASA astronomer Bill Cooke:Still too faint to be seen with the unaided eye, the comet was 18 million miles away from Earth at the time. Cooke took this image …

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    Design Basics: Anti-Aliasing

    One of the simplest ways to improve the look of graphics on a computer screen is to anti-alias them. Here are some examples of aliased graphics, and a few techniques to improve them.

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    Bright September Meteor

    Marshall Space Flight Center PAO Steve Roy was out jogging early Friday morning with his dogs, Lilly and Scout, when he couldn’t help but notice this bright meteor low in the eastern sky.  Also seen by NASA’s all sky meteor cameras at MSFC and in Chickamauga, GA, the meteor was located above the Atlanta area, …

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