Earth
- Tech
Watching Earth for 25 years
The Landsat 5 satellite launched in 1984 with a mission to orbit and image Earth's surface for three years. Still in orbit, the satellite has continuously documented changes in landscape.
- Agriculture
Gut bacteria ally with Bt
A new study finds that a particular microbe makes caterpillars susceptible to the insecticide.
- Physics
Science Stimulus
Researchers look to the new administration to bring fresh perspectives to health, energy, climate policy and science funding.
- Climate
Obama’s budget would boost science
Featured blog: Here's a preview of what science programs the Obama administration plans to push in the coming year's federal budget.
- Animals
Climate change discourages second families
Birds out of sync with local baby food supply of caterpillars aren’t nesting a second time.
- Tech
Catalyst knocks out a smog maker
Unique system could help truckers meet new emissions standards.
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- Climate
Hot carbon storage
New field studies show Africa’s tropical forests have stored carbon in recent decades.
- Astronomy
A green visitor makes its approach
Comet Lulin, which passes closest to Earth on February 24, may be a sight for sore eyes.
- Agriculture
Predators zoom in on lice-infested salmon
New research reveals another impact of fish farming on wild stocks.
- Humans
AAAS: Climate-friendly fish
Many intangibles determine how big — or small — the carbon footprint is of that fish you're thinking about eating.
- Health & Medicine
MRSA has its day in the sun
Beachgoers may be exposed to antibiotic-resistant microbe strain in sea and sand, but there appears to be no link to infection.
