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| Image credit: NASA/JPL/SSI |
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| Prometheus Disrupting Saturn's Rings |
| Dec 3, 2004 - Cassini took this amazing photograph of Prometheus, one of Saturn's small shepherd moons as it's tugging material away from the planet's F ring. The F ring resolves into 5 separate strands, and you can see how tiny Prometheus has a stream of material flowing towards it. Prometheus is only 102 km (63 miles) across, and scientists still aren't sure exactly why it creates the different knots and breaks in the F ring. (Full Story) |
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| Image credit: NASA |
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| Mars Was Once Suitable For Life |
| Dec 3, 2004 - A series of research papers about past water on Mars have been published in the Journal Science by various scientists involved with the Mars Exploration Rovers. Although the team went public with their discoveries many months ago, these research papers provide the full evidence from the Opportunity rover, and have been exhaustively peer reviewed. They hypothesize that the Meridiani Planum region was once saturated with liquid water for a long enough time to support life. (Full Story) |
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| Image credit: NASA |
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| Greenland Glacier Speeds Up |
| Dec 3, 2004 - Scientists have used satellite photographs to track the movements of a relatively fast moving glacier in Greenland, and found that it's picking up speed, doubling its velocity in the last few years. While the glacier is speeding up, it's also thinning, losing ice at a rate of 15 metres (16.4 yards) in thickness each year. The amount of ice melting into the ocean is more than double the output that traditional climate models were predicting, and demonstrates that the world's ice caps and glaciers are much more sensitive to rising temperatures than previously believed. (Full Story) |
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| Wallpaper: Saturn's Rings in Black and White |
| Dec 3, 2004 - Here's an interesting black and white image of Saturn's rings that I think makes a nice 1024x768 desktop wallpaper. The photograph was taken by NASA's Cassini spacecraft on October 29, 2004 when it was 819,000 km (509,000 miles) away, and it shows the different rings and gaps in tremendous detail. (Full Story) |
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