Uncategorized
- Astronomy
Enlightened: Dark matter spotted after cosmic crash
In the aftermath of a cosmic crash between two galaxies, researchers say they've detected invisible dark matter for the first time.
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I won’t state that “dark matter” hasn’t been discovered. However I disagree that empirical evidence for it is demonstrated in this collision. Other phenomena that could explain the images include excitation of preexisting gases or imaging artifacts. Nowhere in the article does it state that the mass of “dark matter” was actually observed passing unimpeded […]
- Health & Medicine
Breast milk may not be enough
Breast-fed infants need vitamin D supplements, at least in winter.
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Placebo predictions
Giving patients placebo pills for a week before they begin to participate in trials of antidepressants can help clinicians gauge how well they will respond to the actual medication.
- Tech
The ups and downs of routing fluids on chips
A new way to build microscale pipes in three dimensions boosts the sophistication of chips that manipulate fluids to perform chemical reactions and other tasks.
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Unusual tumor is contagious in dogs
A type of cancer in dogs is transferred from animal to animal by exchange of cancer cells.
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Stress rate revised for Vietnam vets
A reanalysis of data from a 1988 study of Vietnam veterans finds that 19 percent developed war-related post-traumatic stress disorder, a smaller proportion than had previously been estimated.
- Chemistry
Protection from poisons
An Alzheimer's disease drug could be protective against the deadly effects of two nerve agents.
- Health & Medicine
Sauna use among dads linked to tumors in children
Men who expose themselves to excessive heat in the weeks before they conceive children may place their future offspring at unnecessary risk of brain cancer.
- Astronomy
Cosmic bigness
Astronomers have found the largest structures ever discovered in the universe.
- Paleontology
Bone Hunt
Science News reporter Sid Perkins recounts the trials and tribulations of digging for dinosaurs in central Montana.
- Humans
Mutant Maps
Struck by an analogy between genetic mutations and flaws in antique printed documents, a biologist has devised a method to analyze such flaws to pinpoint publication dates of rare, undated documents.
