Achieving pregnancy with in vitro fertilization depends largely on your age. But other factors contribute, too. A study compares two online tools aimed at giving couples a realistic sense of the odds.
Research at multiple universities shows the decline in safe sex is concentrated among students from low-income families. But why are these students less likely to practice safe sex?
As the craft beer industry grows, so are options for learning to brew. More colleges are now introducing degree programs to teach the art and science of beer-making.
A modified venom from scorpions that carries a dye into the brain and makes tumors glow has cleared its latest hurdle. But will this attempt to improve brain surgery work in humans as well as animals?
Depending on the size of the subsidy they got, some will get a bigger refund than expected and others will owe taxes.
Farms in California use as much as four times the water consumed by cities and towns. Now farmers are on defense after the governor decided to mostly exempt them from new, sweeping water cutbacks.
More than a century ago, the Brontosaurus was deemed too similar to the dinosaur Apatosaurus. Recent research finds there is enough difference between the two creatures after all.
We're not talking about just a smidge. Roughly 10 percent of samples tested contained at least 10 percent cow's milk. Doctors say the diluted milk could be dangerous for babies for several reasons.
Sea level rise is beginning to affect the Kennedy Space Center in Florida. A protective dune not too far from the launchpads has collapsed.
Amazon's getting into the rent-a-goat business (for weed chomping). After all, goats are great at wiping out unwanted plants — even poison ivy. How do they do it?
A 20-year-old man born without fingers on one hand hopes a transplanted hand will give him more confidence. He knows the risks of such a visible transplant, but says, "It's something I always wanted."
Why not get bloodwork done a few times a year, as some celebrities advise? Because too much testing can lead to false positives, abnormalities that don't threaten health, and to unnecessary treatment.
Some scientists suggest calling the era we live in the Anthropocene, to denote the time when humans came to dominate Earth's fate. But did it start with farming, the atom bomb or other event?
During its last major drought, Santa Barbara built a desalination plant. It was never used. Now it's being reopened, but critics say desalination is costly, energy-intensive and may harm marine life.
The Large Hadron Collider at CERN, near Geneva, Switzerland, underwent a number of upgrades, including a doubling of the energy with which it can smash protons together.
The third in a set of four lunar eclipses that began a year ago and will finish in late September could be seen from the U.S. East Coast to Asia.
Many Christian denominations officially oppose legislation that would legalize medically assisted suicide. But some individual churches, pastors and congregants are lending support to the cause.
Cambridge University has unearthed one of Britain's largest medieval hospital cemeteries, containing more than 1,000 human remains. NPR's Audie Cornish and Melissa Block talked to the leader of the dig, Craig Cessford, about the new findings.
Weather permitting, a "blood moon" eclipse — the penultimate in a four-eclipse cycle — can be seen in its totality by those living on the U.S West Coast.
Would you kill a young Hitler to prevent World War II? Men are more likely to say yes, a study finds, while women weigh the moral cost of murder along with lives saved.