News
- Earth
Sulfur Studies: Early Earth’s air was oxygen-poor
Analyses of ancient sulfide minerals and the modern organisms that create sulfides are giving scientists a better idea of what Earth's atmosphere and oceans may have been like billions of years ago.
- Materials Science
Fracture Protection: Nanotubes toughen up ceramics
The addition of carbon nanotubes to a ceramic material dramatically improves its fracture resistance.
-
Brain learns to sharpen its focus
A brain-imaging study indicates that visual learning intensifies activity in a specific part of the neural gateway for information transmitted from the eyes.
- Astronomy
Runaway black hole
Observing a black hole and its visible companion star caroming through our galaxy, astronomers have found the best evidence to date that stellar-mass black holes are born during supernova explosions.
- Materials Science
Carbon nanotubes beam electrons
Researchers have taken a step toward using carbon nanotubes as electron sources in devices such as high-resolution electron microscopes.
- Health & Medicine
Getting the iron out
A new oral drug called ICL670 works as well as an injectable treatment in relieving iron overload in the blood.
- Health & Medicine
Protein vaccine slows leukemia
A cancer vaccine fashioned from a piece of a compound called proteinase-3 shows promise against leukemia.
- Astronomy
News of the Early Universe: Findings from the cosmic microwave background
The most detailed snapshots so far of the infant universe confirm that the cosmos consists mostly of mystery material, called dark energy, that accelerates the universe's expansion.
- Astronomy
News of the Early Universe: Findings from the cosmic microwave background
The most detailed snapshots so far of the infant universe confirm that the cosmos consists mostly of mystery material, called dark energy, that accelerates the universe's expansion.
- Health & Medicine
Sea Sickness: Despite cleaner cruises, diarrhea outbreaks persist
Improvements in vessel sanitation have apparently contributed to a gradual decline in diarrheal infections on cruise ships, but standard cleaning practices don't reliably wipe out the viruses that are behind a recent rash of outbreaks.
- Health & Medicine
Sea Sickness: Despite cleaner cruises, diarrhea outbreaks persist
Improvements in vessel sanitation have apparently contributed to a gradual decline in diarrheal infections on cruise ships, but standard cleaning practices don't reliably wipe out the viruses that are behind a recent rash of outbreaks.
-
Showing Some Spine: Imaging of nerve cell branches stirs debate
Two research groups have taken unprecedented, high-resolution images of nerve cells inside the brains of live mice—and come to seemingly contradictory views.
