January 30, 2012 |
If you don't believe in horoscopes, you're in step with science. But that's not the same as saying the season of your birth cannot affect your fate. Hundreds of studies, published in peer-reviewed journals, have suggested that the month a person is born in is associated with characteristics such as temperament, longevity and susceptibility to certain diseases. Scientists say that even though some of these findings are probably spurious - if you dig around in data, you will eventually find correlations just by chance - other effects are very likely real, triggered not by the alignment of the planets but by exposures during prenatal and early postnatal lives.
March 25, 2010 |
Tyrannosaurs may have stalked far more of the globe than previously thought. Scientists for the first time have found evidence of an ancestor of Tyrannosaurus rex in the Southern Hemisphere, a discovery that could shed light on tyrannosaurs' evolutionary lineage, which many scientists had thought was restricted to the Northern Hemisphere after the continents began to separate. Tyrannosaurs had been documented only in Asia, Europe and North America, but a hip bone discovered in Australia could have come only from a tyrannosaur, researchers have concluded.
May 13, 2006
IT'S NOT JUST NATURE THAT abhors a vacuum; man does too. That sucking sound you hear is the noise made by thousands of young immigrants as they travel from the overpopulated Southern Hemisphere to the more prosperous Northern Hemisphere in pursuit of employment. The phenomenon is putting pressure on economies from Oslo to Okinawa, and it is fueling raucous worldwide debates about immigration and motherhood.
May 19, 2002 |
The north and south poles on Mars look very different from each other, and scientists now think they know why: Circulation patterns in the Red Planet's very thin atmosphere tend to keep all the water in the north, leaving the south pole high and dry. The exploration of Mars by unmanned spacecraft has shown that the northern hemisphere has a large polar cap made up mostly of frozen water while the southern hemisphere has a much smaller cap made up...
CALIFORNIA | LOCAL
June 3, 1999
The winter warming of the Northern hemisphere in recent years is ultimately caused by global warming, but the more proximate cause is change in the jet stream, NASA researchers report in today's issue of the journal Nature. Although mean global temperatures have risen by less than 1 degree Fahrenheit since the 19th century, winter temperatures in the Northern Hemisphere have climbed by as much as 9 degrees in the last 35 years.
CALIFORNIA | LOCAL
April 23, 1998
The years 1997, 1995 and 1990 were the warmest in the Northern Hemisphere since the days of Christopher Columbus, according to researchers from the University of Massachusetts at Amherst. And the researchers say that they found evidence that rising levels of greenhouse gases are probably responsible. Geoscientist Michael Mann and his colleagues reconstructed annual average temperatures back to the year 1400 and found no year warmer than those three, they report in today's Nature.