Uncategorized
- Planetary Science
Meteor explodes over Russia
The object is unrelated to February 15 asteroid flyby, experts say.
- Space
Supernovas are cosmic ray factories
Supernova remnants provide evidence that these intense stellar explosions send cosmic rays hurtling through the galaxy.
- Space
Uncertainty at a grand scale
A test of Heisenberg’s principle, on a scale visible to the naked eye, may aid the search for gravitational waves.
- Life
Melting Arctic may make algae flourish
More sunlight penetrates thinning Arctic sea ice, enabling algal growth.
- Health & Medicine
A surprise makes memories wobbly
Drug that interferes with recollection works only when people face the unexpected.
- Life
Antianxiety drugs affect fish, too
Perch swim more and eat faster when exposed to concentrations of an antianxiety medication found in rivers.
- Health & Medicine
Smoking ban cuts preterm births
Belgium sees drop in preterm births after initiating no-smoking policies.
- Life
Diversity breeds disease resistance in frogs
Species-rich amphibian communities prove better at fending off limb-deforming parasitic infections.
- Chemistry
Bitter and sour taste detectors also say, ‘too salty’
Mice that can’t sense the two tastes find high sodium attractive.
- Humans
Newborn babies walk the walk
Infants strut a runway wearing electrodes to show how the walking reflex works.
- Animals
Sea slug carries disposable penis, plus spares
A hermaphroditic gastropod sheds its penis after one use, then uncoils another.
- Health & Medicine
To develop male behavior, rats need immune cells
Research reveals unexpected role for cells called microglia in shaping the brain.
