Feature
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- Tech
Refueling Rockets
Hybrid-rocket fuels—part solid, part liquid—have been around for a half-century, and they may just now be taking off.
- Health & Medicine
More than a Kick
Nicotine ramps up activity throughout the body, making the drug a suspect in many tobacco-related ailments.
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Blood Work
Knowing the identity of every protein in the liquid portion of blood could offer new ways to detect—or even treat and prevent—many diseases.
- Tech
On the Rebound
When electronically reversed in time, acoustic echoes can zero in on a spot in space, focusing sound energy so that it may zap tumors, detect submarines, or transmit private and secure information.
- Health & Medicine
When Drinking Helps
Sometimes a nip of alcohol can indeed prove therapeutic, though usually not until middle age.
- Ecosystems
Spring Forward
Scientists who study biological responses to seasonal and climatic changes have noted that the annual cycles for many organisms are beginning earlier on average, as global temperatures rise.
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Pass the Genes, Please
Gene swapping muddles the history of microbes.
- Tech
The Little Engines That Couldn’t
Tired of grinding their gears, micromachine researchers turn to surface science.
- Earth
A Safe Solution
A home-based technique for treating microbe-contaminated water with chlorine solution could save millions of lives in countries that are currently unable to provide residents with safe drinking water.
- Astronomy
Mature Before Their Time
Some galaxies were in place and forming stars at a prolific rate when the universe, now 13.7 billion years old, was just an 800-million-year-old whippersnapper.
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