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Current Issues
![COVER This week's cover features a Classopollis meyeriana conifer pollen grain (about 30 micrometers across) preserved in lake sediments deposited just after a massive, volcano-induced extinction event about 200 million years ago. [CREDIT Dee Breger and Sarah Fowell/Science Source]](/images/science_cover.jpg?version=20130523 "COVER This week's cover features a Classopollis meyeriana conifer pollen grain (about 30 micrometers across) preserved in lake sediments deposited just after a massive, volcano-induced extinction event about 200 million years ago. [CREDIT Dee Breger and Sarah Fowell/Science Source]")
![COVER This week's cover features a heat map where each rectangle represents expression of a germline or placental gene by a different tumor type. In the image, the brighter the red of the rectangle, the more common is the expression of that gene in that type of cancer. For noncancerous tissues (other than the testis or placenta), a heat map like this would be solid black. [CREDIT: S. ROUSSEAUX/INSERM]](/images/homepage/covers/trans_med_cover.jpg?version=20130522 "COVER This week's cover features a heat map where each rectangle represents expression of a germline or placental gene by a different tumor type. In the image, the brighter the red of the rectangle, the more common is the expression of that gene in that type of cancer. For noncancerous tissues (other than the testis or placenta), a heat map like this would be solid black. [CREDIT: S. ROUSSEAUX/INSERM]")
![ONLINE COVER This week features a Research Article that suggests that G protein α-subunits switched from being self-activating to requiring an activating receptor as eukaryotic organisms evolved. The image shows the phylogenetic analysis of regulators of G proteins, as well as three different types of domain architecture. [Image: Daisuke Urano, Department of Biology, University of North Carolina at Chapel Hill, NC, USA]](/images/homepage/covers/signaling_cover.jpg?version=20130522 "ONLINE COVER This week features a Research Article that suggests that G protein α-subunits switched from being self-activating to requiring an activating receptor as eukaryotic organisms evolved. The image shows the phylogenetic analysis of regulators of G proteins, as well as three different types of domain architecture. [Image: Daisuke Urano, Department of Biology, University of North Carolina at Chapel Hill, NC, USA]")
Latest News
Cockroaches Outsmart Sugary Traps
Cockroaches like sweets but the sugar-coated traps designed to lure and kill them haven't been as effective as they once were, and a new study in Science explains why.
Huge Online Courses Show Promise, Raise Questions
Open-access online courses serving massive numbers of students can make education more accessible, but they also raise questions about helping at-risk students, experts said.
AAAS Op-Ed: Don't Devalue Basic Research
Prioritizing industry-focused science more highly than basic research—a trend underway in the U.S. and Canada—is short-sighted, AAAS CEO Alan Leshner writes in the Toronto Star.
Science Policy
Canada Aims to Boost Industrial R&D
The Canadian government is taking steps to encourage business-oriented research, said the country's minister responsible for science and technology.
Education
New Middle School Curriculum Shows Promise
Preliminary AAAS research suggests that a stronger foundation in chemistry can better prepare students for high-school biology.
International
Experts Outline Challenges in International Collaboration
International research collaborations are on the rise, pushing scientists, their institutions and security experts to find new ways to create a safe, productive environment for research.
Public Engagement
Students Showcase Green Inventions
Eco-friendly egg-washers, waterfall-powered battery-charging stations and other technologies presented at the EPA P3 competition help solve important sustainability challenges.
Special Offer & Highlight
Special Offer: Great Member Rates
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Highlight: Planetfall
A photography exhibit featuring celestial objects, produced using data from NASA and ESA missions.
View exhibit details »
View exhibit details »
