Uncategorized
- Physics
How blueshift might beat redshift
Even though the expanding universe makes light redder, light emitted by collapsing stars and dust clouds could appear unusually blue.
- Anthropology
Scans tell gripping tale of possible ancient tool use
South African fossils contain inner signs of humanlike hands, indicating possible tool use nearly 3 million years ago.
- Planetary Science
Rosetta reveals a complex comet
Rosetta finds diverse landscapes on comet 67P, which could provide researchers with clues about how the solar system formed.
- Life
When bacteria-killing viruses take over, it’s bad news for the gut
A rise in some bacteria-killing viruses in the intestines may deplete good bacteria and trigger inflammatory bowel diseases.
- Psychology
Emotions go unnamed for some with eating disorders
A portion of women with eating disorders have a separate problem recognizing their own emotions, a condition called alexithymia.
- Genetics
Scientists find new way to corral genetically engineered bacteria
Engineering E. coli to depend on human-made molecules may keep genetically modified bacteria from escaping into nature.
- Environment
Atrazine’s path to cancer possibly clarified
Scientists have identified a cellular button that the controversial herbicide atrazine presses to promote tumor development.
- Planetary Science
Young asteroids generated long-lasting magnetism
Pockets of iron and nickel in meteorites suggest that asteroids in the early solar system produced magnetic fields for much longer than once thought.
- Neuroscience
Brain’s protective barrier gets leakier with age
Aging influences the breakdown of the blood-brain barrier, which may contribute to learning and memory problems later in life.
- Health & Medicine
Immune system ‘reset’ may give MS patients a new lease on life
With the help of their own stem cells, MS patients can stop the disease in its tracks in many cases.
- Neuroscience
Newly identified brain circuit hints at how fear memories are made
A newfound set of brain connections appears to control fear memories, a finding that may lead to a better understanding of PTSD and other anxiety disorders.
- Animals
Cone snail deploys insulin to slow speedy prey
Fish-hunting cone snails turns insulin into a weapon that drops their prey’s blood sugar and eases capture.
