News
- Chemistry
Feline stimulant fends off mosquitoes
Preliminary results suggest that catnip may be more effective at repelling mosquitoes than the widely used chemical DEET.
- Astronomy
Galaxy’s Black Hole: X Rays Mark Spot
An X-ray outburst from the center of our galaxy is providing compelling new evidence that a monster black hole lurks at the Milky Way's core.
- Earth
Aircraft spies on health of coral reefs
Marine ecologists report the development of a new remote-sensing system that can assess the health of coral reefs from planes.
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A tip of the tongue to the brain
Researchers have identified several brain areas that together underlie the experience of feeling certain that a piece of forgotten information is nonetheless on the tip of one's tongue.
