Childhood Vaccination Rates Climb In California
State health officials suspect California's big measles outbreak last year helped persuade parents to get their kids immunized against other illnesses, too.
Research News
Long Thought To Be Extinct, Bizarre Tree Frog Surfaces In India
Frankixalus jerdonii has been rediscovered in northeastern India — and scientists say it represents an entirely new genus. Strangely, the tadpoles feed on their mothers' unfertilized eggs.
Scientists Find Hints Of A Giant, Hidden Planet In Our Solar System
Something very big, out beyond Neptune, is warping the orbits of small, icy objects circling our sun. Astronomers haven't seen it yet, but say the culprit could be a planet with 10 times Earth's mass.
Ready For Prime Time: A Number With 20 Million-Plus Digits
The largest-ever prime number has been discovered at the University of Central Missouri. It breaks the previous record by almost 5 million digits.
Social Science Research Examines The Generosity Of The Wealthy
Self-made billionaires are bigger philanthropists than those who inherit their wealth, research says. That might explain why the self-made wealthy plan to donate much of their wealth to charity.
Lifesaving Flights Can Come With Life-Changing Bills
People in big, sparsely populated states like Montana rely on air ambulances to get to medical specialists they need. But the lifesaving flights can be hugely expensive and not covered by insurance.
Record-Busting Star Explosion Baffles Sky Watchers
It's 200 times more powerful than a typical supernova and 570 billion times brighter than our sun. First spotted in June, this stellar monster is wowing astronomers, who wonder what's at its heart.
Researchers Probe Stereotype: Christians And Science Don't Get Along
Do stereotypes about religious people undermine their performance in certain tests? Studies have found Christians tend to underperform non-Christians when it comes to tests of logical ability.
Average Age Of First-Time Moms Keeps Climbing In The U.S.
A national survey finds that U.S. mothers are having their first child later than ever — it's a 45-year trend. The big reason seems to be a steady drop in the number of teen moms.
Aleutian Quake Zone Could Shoot Big Tsunamis To Hawaii, California
Tension is building along a major fault in the seabed off Alaska's coast, research shows. Devastating tsunamis from sudden slips in certain sections could directly hit Hawaii and Central California.