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Tobacco mosaic virus

This Day in Science History: The discovery of viruses – “the filterable agents”(12/2/1892)

12.02.2015
Viruses & Microorganisms, Immunology, Disease, Drugs & Diagnostics, Plants and Agriculture, Organic Chemistry, Structural Biology
On 12/2/1892, the first evidence for the existence of viruses was presented: Dimitri Ivanovsky, a young Russian scientist, suggested before the...
A satellite image of Olympus Mons, Mars, the largest volcano in the solar system at about three times the height of Mount Everest. Around 3.5 to 4.0 billion years ago, the release of volcanic gases, especially the greenhouse gas sulfur-dioxide, may have warmed the surface of Mars episodically, thereby explaining the presence of geomorphological features indicative of the flow of water on the planet's ancient surface

How Water Could Have Flowed on Mars

18.11.2014
Planetary Science, Earth Sciences, Environment, Chemistry
A new model suggests volcanic activity in Mars’ distant past spewed enough greenhouse gases to warm the atmosphere and melt the ice  
Microbes Take their Sulfur Light

Microbes Take their Sulfur Light

18.11.2014
Earth Sciences, Environment, Chemistry
A model explaining the preferences of deep-sea microbes can help reveal the ancient past – as well as predict the future
3) dormancy and 4) explosive growth

The Time-Bomb Fungus

16.11.2014
Plants and Agriculture
An up-to-date report on the war raging on the surface of your fruit
The Coral Sweepstakes

The Coral Sweepstakes

04.11.2014
Environment
High-speed films of coral reveal how tiny hairs are used for housekeeping
Clearing the Path www.iclean.org.il.

Clearing the Path

27.10.2014
Earth Sciences
A website developed at the Weizmann Institute encourages people to go out and clean up
Satellite image showing a patch of bright waters associated with a bloom of phytoplankton in the Barents Sea off Norway. Image courtesy of Norman Kuring, Ocean Color Group at Goddard Space Flight Center, NASA

The Ocean’s Living Carbon Pumps

21.10.2014
Life Sciences, Viruses & Microorganisms, Environment, Climate
Understanding how viruses attack giant algal blooms may help us understand their role in fixing global carbon  
Chicken vs Beef

The Real Price of Steak

21.07.2014
Environment, Plants and Agriculture
 
Convective clouds forming over the Amazon in a blanket smoke. Image: Prof. Ilan Koren

No Limits to Human Effects on Clouds

08.06.2014
Planetary Science, Environment, Climate
Weizmann Institute research shows how atmospheric particles affect cloud formation in real time  
Diatom cells expressing ROS-sensitive proteins in the nucleus (green) and chlorophyll (red)

Drift against the Tide

09.04.2014
Biochemistry, Viruses & Microorganisms, Environment, Plants and Agriculture
Ocean plankton turn a toxic byproduct into a sophisticated stress indicator

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