Access
To read this story in full you will need to login or make a payment (see right).
news feature
Nature 413, 247-248 (20 September 2001) | doi:10.1038/35095124
Open Innovation Challenges
-
Optimizing Sub-cellular Localization Tags
The Seeker is looking for methods to optimize sub-cellular localization tags for protein expression....
-
Novel Approaches to Protecting Maize from Insect Damage
The Seeker is looking for novel approaches to protecting maize from insect damage. This Challenge re...
- More Challenges
- Powered by:
nature jobs
Research Assistant
- University of Glasgow
- Glasgow, UK
Postdoctoral Fellow in Immunology
- The Scripps Research Institute
- N Torrey Pines Rd, San Diego, CA, USA
The stowaways
Tom Clarke1
Abstract
Over the coming decade, exploration of Mars may reveal whether or not life ever existed on the red planet — but only if the missions can avoid detecting any microbes they bring with them, says Tom Clarke.
In 1976, NASA's two Viking landers bumped down on the surface of Mars and began their search for life. They failed to find any, showing instead that the martian topsoil is extremely inhospitable — highly oxidizing and continually bombarded by massive doses of ultraviolet radiation.
To read this story in full you will need to login or make a payment (see right).
