Environment
Pesticides contaminate most food of western U.S. monarchs
Monarch caterpillars eat only milkweeds. A new study finds widespread pesticide use has tainted these plants across the insect’s western U.S. breeding grounds.
Word of the Week
Space
Scientists Say: Solar
What do solar energy, the solar year and solar flares have in common? They’re all related to the sun.
Explainers
Explainer: What are logarithms and exponents?
Mathematics provides a means of tracking, comparing and expressing data that vary broadly in scale.
Experiments
Popping my own corny experiment
Popcorn pops at 180 °C, according to a study, but that was corn popped in an oven. What happens if you try to confirm this on a stove top?
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Wiggly wheels might help rovers plow through loose lunar soils
New design lets wheels ascend hills too steep for regular robots and paddle through loose soils without getting stuck.
