News
- Earth
Sinking Mercury: Light-based reactions destroy toxic chemical in Arctic lakes
Sunlight triggers the entry of poisonous mercury into polar lakes, but it also removes most of the toxic compound before fish can consume it.
- Physics
Thermonuclear Squeeze: Altered method extends bubble-fusion claim
A technique that some scientists claim generates thermonuclear fusion in a benchtop apparatus apparently works even without its controversial neutron trigger.
- Astronomy
Pay Dirt: Cometary dust collector comes home
A capsule containing dust collected from the comet Wild-2 safely landed in the Utah desert.
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Intrinsic Remedies for Pain: Placebo effect may take various paths in brain
The brain draws on a range of pain-fighting options when people receive sham treatments for pain.
