News
- Cosmology
Slow, cold start to universe suggested
By allowing particle masses to change, a new theory suggests how the universe could have arisen without a Big Bang.
- Health & Medicine
Immunotherapy attacks aberrant cervical growth
The treatment might stop cancers before they arise.
- Humans
Neandertal hot spots highlighted in modern humans’ DNA
Mating with evolutionary cousins produced genetic trade-offs for Stone Age people.
- Life
A little acid or a tight squeeze can turn a cell stemlike
Stresses send mouse cells into primordial state capable of making any tissue.
- Neuroscience
Famous brain surgery patient H.M. retained a chunk of hippocampus
The patient's amnesia was probably due to the loss of other regions and neural connections.
- Health & Medicine
Nanopackaging biodegrades after delivering cancer drug
DNA binding creates potentially nontoxic tumor-targeting structures.
- Animals
Windows may kill up to 988 million birds a year in the United States
Single-family homes and low-rise buildings do much more damage than skyscrapers.
- Life
How to tell good gut microbes from bad
Researchers sort out influences of specific bacteria on body fat, the immune system.
- Animals
Mantis shrimp’s bizarre visual system may save brainpower
The mantis shrimp sees each color separately with one of a dozen kinds of specialized cells, a system that may help the animal quickly see colors without a lot of brainpower.
- Planetary Science
Old rover finds new evidence of water on Mars
Opportunity’s analysis of rocks at Endeavour crater reveals chemistry that could have supported life.
- Physics
Laser builds mirror by pushing beads together
The light technique may one day be used to build giant telescopes in space.
- Animals
Sloths, moths, algae may live in three-way benefit pact
Insects and green slime may justify the slow mammal’s risky descent from trees.
