All Stories
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SpaceDark energy constantly with us
New X-ray and visible-light observations of the growth of galaxy groups and clusters are offering confirming evidence for the existence of dark energy and suggest that it may resemble the cosmological constant.
By Ron Cowen -
TechHoliday Gifts: Blog Sites
Sample other blogs and let us know of notables that we missed that are also worth sharing.
By Janet Raloff -
Health & MedicinePotentially potent chemo target in sight
A fruit fly protein that helps control cell differentiation may be a powerful target for stopping human cancers.
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Health & MedicineBreast cancer costs poor people more
Out-of-pocket costs of breast cancer hit poor individuals the hardest.
By Nathan Seppa -
Health & MedicineSoy compound revs up cancer fighter in healthy tissue
A lab study of healthy breast tissue cells shows increases in the tumor suppressor protein PTEN in the presence of soy isoflavone genistein, a compound believed to fight breast cancer.
By Nathan Seppa -
Health & MedicineBreast density signals tamoxifen’s effectiveness
Decreasing breast density signals the drug tamoxifen is working in women at risk of developing breast cancer.
By Nathan Seppa -
LifeHawaii’s honeyeater birds tricked taxonomists
DNA from old museum specimens reveals evolutionary look-alikes.
By Susan Milius -
MathThe happiness virus
Two studies apply social networking ideas to data from health studies of thousands of people, and suggest different interpretations of how contagious happiness or other experiences can be.
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ArchaeologyTools with handles even more ancient
An analysis of stone tools excavated at a Syrian site indicates that, around 70,000 years ago, Neandertals used a tarlike adhesive to affix sharpened items to handles.
By Bruce Bower -
ChemistryOf Presidents and Nobels
It appears Lawrence Berkeley National Laboratory will soon have produced two Nobel laureates to offer White House counsel and directives on science policy.
By Janet Raloff -
Health & MedicineStronger role for a breast cancer drug
Going beyond its original role as an add-on for chemotherapy, the breast cancer drug lapatinib, when taken with another kind of frontline drug, may find use for patients with the HER2-positive form of the cancer.
By Nathan Seppa -
LifeStudy raises worries for zoo-born elephants
Study of captive-born females finds big survival gap between zoo natives and elephants in native ranges.
By Susan Milius