Uncategorized
-
Livers: Better late than never
Drawing on an ancient Greek myth, researchers have given the name prometheus to a mutant strain of zebrafish that appear to have no liver early in their lives.
By John Travis -
Health & MedicineGuggul extract fails its cholesterol test
Guggul extract, long used in parts of Asia and gaining popularity in Western countries as a weapon against high cholesterol, does not appear to work.
By Ben Harder -
Planetary ScienceA warmer, fluffier Pluto
Although Pluto has been receding from the sun for more than a decade, planetary scientists have now found that between 1988 and 2002, Pluto’s atmosphere has nearly doubled in size and its temperature has increased by about 1 degree C.
By Ron Cowen -
Health & MedicineViruses, but not bacteria, tied to mental decline
Past infection by multiple common viruses may contribute to cognitive decline in some elderly people.
By Ben Harder -
TechHigh-flying wing destroyed in crash
The unmanned NASA aircraft that holds the world record for high-altitude flight without rocket propulsion recently broke up over the Pacific Ocean.
By Peter Weiss -
Health & MedicineDrug reduces risks for dialysis patients
Kidney-dialysis patients getting the vitamin D drug paricalcitol survive longer than those getting a similar medication called calcitriol.
By Nathan Seppa -
AstronomyStellar speed limit
Ripples in the fabric of space-time may put the brakes on the fastest-spinning stars in the universe and prevent them from flying apart.
By Ron Cowen -
Health & MedicinePredicting Prostate Cancer’s Moves
To guide treatment decisions in individual cases of prostate cancer, medical researchers are using gene-expression profiling and other novel techniques to develop better predictive markers of how a given tumor will behave.
By Ben Harder -
EarthOn Shifting Ground
In earthquake-prone areas of the United States and elsewhere in the world, debates go on over whether—and how much—to reinforce buildings.
-
HumansFrom the August 19, 1933, issue
CONSTRUCTION BEGUN ON 80-INCH TEXAS TELESCOPE The giant 80-inch reflecting telescope that will spy upon the stars from McDonald Observatory, to be erected on a peak of Davis Mountains, Texas, is now under construction. A contract for the telescope has been approved by the University of Texas board of regents, and Warner and Swasey Company […]
By Science News -
Planetary ScienceMars Encounter
On Aug. 27, Mars and Earth will be closer to each other than at any other time in the last 50,000 years. Amateur astronomers with small backyard telescopes can already view features such as dust clouds, the southern polar ice cap (because the southern cap is tipped toward Earth), and volcanic terrain. This NASA Web […]
By Science News -
MathGolf Clubs and Driving Distance
The last 20 years have seen remarkable changes in golf equipment: metal-headed drivers, forgiving irons, new putter variants, juiced golf balls, and more. Have these technology changes led to improved performance? Anecdotal evidence certainly points to such improvements. In 1980, for example, the leader in driving distance on the Professional Golfers of America (PGA) Tour […]