Peek-a-boo Moon

This photo was made by the Hubble Space Telescope on April 9, 2007. It shows the moon Ganymede (right) about to disappear behind Jupiter’s limb. The eye-shaped Great Red Spot is twice the diameter of Earth and has been around for more than 300 years. The stripes are cloud belts composed of ammonia ice crystals.…
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Peek-a-boo Moon

This photo was made by the Hubble Space Telescope on April 9, 2007. It shows the moon Ganymede (right) about to disappear behind Jupiter’s limb. The eye-shaped Great Red Spot is twice the diameter of Earth and has been around for more than 300 years. The stripes are cloud belts composed of ammonia ice crystals. Photo: NASA,…
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3-D Bliss

Beg, borrow or steal a pair of 3-D glasses. You know the ones. One half is blue, the other red. When you look through them at images taken as stereo pairs, it’s like being there. The Mars Reconnaisance Orbiter has taken over 300 3-D pairs of images, and they’re all available on this website. There…
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Crystals At Work … Again

This photo was taken from the parking lot of First United Methodist Church on Skyline Parkway this morning. A feather of light, called a sun pillar, is visible beneath the sun. Photo: Bob King When the air is cold, ice crystals get busy. Yesterday’s blog looked at artificial light pillars created by gently-falling ice. Today…
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Crystals At Work … Again

This photo was taken from the parking lot of First United Methodist Church on Skyline Parkway this morning. A feather of light, called a sun pillar, is visible beneath the sun. Photo: Bob King When the air is cold, ice crystals get busy. Yesterday’s blog looked at artificial light pillars created by gently-falling ice. Today we…
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