News
- Climate
Carbon dioxide not to blame in ice age mystery
Scientists look at seafloor sediments to determine that a long-term decline in carbon dioxide is not the reason for less frequent ice ages.
- Health & Medicine
Gene silencing in colorectal cancer may prove useful
Genetic irregularity in colorectal cancer cells might serve as a biomarker of risk for this malignancy.
- Astronomy
Supernova may be in a new class
A recently discovered stellar explosion may be part of a new class of supernova.
- Paleontology
Bird in the hand
Fossilized fingers strengthen evolutionary link between dinosaurs and avian relatives.
- Tech
Proposed quantum motor runs with a kick
Scientists suggest a way to put ultracold atoms to work.
- Earth
White House releases report on climate change
A new White House report addresses current and projected impacts of climate change across the United States.
- Health & Medicine
Gene plus stress equals depression debate
A reanalysis of data challenges a prominent report that a particular gene variant interacts with stressful experiences to promote depression, sparking controversy.
- Health & Medicine
CT scan nearly as good as regular colonoscopy
Virtual colonoscopy might suffice for people at high risk of colorectal cancer, a new study finds.
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- Life
Estrogen may reprogram prostate cancer gene in black men
Study finds a lack of chemical tags near a prostate cancer gene in African American males.
- Archaeology
Engraved pigments point to ancient symbolic tradition
Analyses of patterns incised on pieces of ancient pigment indicate that people in southern Africa passed along symbolic practices from 100,000 to 75,000 years ago, scientists say.
- Health & Medicine
Origins of the swine flu virus
Researchers use evolutionary history to trace the early days of the pandemic.
