Archive for the ‘By Subject’ Category

No joke: Laughing gas attacks ozone! - Thursday, September 3rd, 2009

The ozone layer protects Earth from UV rays: Twenty-two years after a treaty to protect ozone, how is the layer doing? What has happened to the ozone hole above Antarctica?

Brit astronomers reveal sizzling cosmic tryst! - Thursday, August 27th, 2009

A planet newly found in the southern sky is perilously close to its star, orbiting in less than 1 Earth day. Within 10 years, this planet may force a new understanding of star-guts.

Imitation: Better than flattery? - Thursday, August 13th, 2009

Imitation is a social glue in human society. We like people who imitate us. We call them friend. We will even tip them better! A new study finds similar responses in monkeys…

Fertilizing the ocean - Thursday, August 6th, 2009

As Earth warms, we may need huge geoengineering projects to fight climate change. Would adding iron to fertilize ocean plants withdraw enough carbon dioxide to slow warming? Could the plan backfire?

Nanotech - Thursday, July 30th, 2009

Adding nanotubes makes a stronger plastic, but adding several nano-structures greatly increases the benefit, according to a new study from India. Read about the frontier of material science.

Swine flu - Thursday, July 23rd, 2009

Virologists have been working late since swine flu appeared in April. With flu running amok in South America, what can we expect when the epidemic returns north this fall?

Animal arms race - Thursday, July 16th, 2009

The struggle between predator and prey never ends. Bats invented sonar, and now some moths are fighting back. Check out the Why Files acoustic-organic warfare, airborne edition.

Senators, governors and other mammals… - Thursday, July 9th, 2009

Can our evolutionary roots explain that self-destructive search for sex – and sexual companionship? Could Darwinian psychology constitute the cause home-wrecking, career-blitzing fatal attractions?

How a fly detects a poison - Thursday, July 2nd, 2009

Animals spend a lot of energy avoiding toxic chemicals in their food. A new type of gene that does this in fruit flies reinforces the importance of reproduction in shaping evolution.

Genetic tests go mainstream - Thursday, June 25th, 2009

Companies are marketing genetic tests direct to consumers. Some tests can be lifesavers. But many tests return confusing results, which even doctors have a hard time interpreting.

Cool Science Images

SciMax Theater

Virtual Science!

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