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Monday, 18 June 2007 |
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Richard B. Roberts Fellow Isamu Matsuyama and colleagues published a paper entitled “Evidence for an Ancient Martian Ocean in the Topography of Deformed Shorelines” in this week’s issue of Nature. The group’s observations suggest that the northern plains of Mars that cover nearly one third of the planet’s surface, may once have contained an ocean. Their research suggests that changes in Mars’ orientation with respect to its axis might be responsible for large variations in the topography of shoreline-like features on the planet. Though scientists have studied these features for more than 30 years, this current study presents an alternative explanation for how they formed.
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Monday, 11 June 2007 |
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DTM’s summer interns arrived at the beginning of June. Sapthala Karalliyadda of the University of Peradeniya, Sri Lanka, is working with NSF Postdoctoral Associate Dayanthie Weeraratne; Amanda Klaus of Scripps College is working with Harry Oscar Wood Fellow Lara Wagner; and Ana Maria Molina of the Universidad Pontificia Bolivariana, Colombia, is working with Richard B. Roberts Fellow Isamu Matsuyama.
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Wednesday, 06 June 2007 |
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For the second time since last October, the MESSENGER spacecraft flew by Venus on 5 June, using the pull of the planet’s gravity to guide it closer to Mercury’s orbit. This is the closest pass of Venus to date as MESSENGER aimed to cruise 337 kilometers (209 miles) above the planet’s surface. The flyby coordinates with the Venus Express spacecraft currently orbiting Venus, allowing for novel dual-spacecraft observations of the planet.
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