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Nature 419, 350-351 (26 September 2002) | doi:10.1038/419350a
Open Innovation Challenges
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Protect Enzyme from In Planta Degradation
A proposal for stable expression of an enzyme in corn seed is desired.
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Efficient Chromosome Doubling: Plant Cell Division
The Seeker is looking for an efficient chromosome doubling method in plants and in particular, metho...
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Scientist for Adrenal Research
- University of Dresden, Dept. of Medicine, Director: Prof. S. Bornstein
- Dresden 01307 Germany
Forest Insect Ecologists
- Natural Resources Canada Canadian Forest Service (CFS)
- Fredericton, New Brunswick, Canada
Planetary science: Tracking the martian climate
Alan D. Howard
Abstract
Like Earth, Mars has experienced long-term fluctuations in climatic conditions. The cause of certain fluctuations is now identified as variation in the planet's astronomical behaviour.
In 1971, the Mariner 9 orbiter revealed extensive layered deposits on Mars at each pole at latitudes above 75°. Later spacecraft provided more detailed views of these deposits, which occur in both the northern and southern hemispheres as broad domes up to 2.
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