A group of high school and college teachers and students has transmitted sound pulses faster than light travels-at least according to one understanding of the speed of light.

Guns are used to kill two out of every three homicide victims in the United States, and new research shows that home access to guns makes a difference. States with more firearm-owning households have highest homicide rates.

Beaver dams could be the answer to stopping the decline of amphibian populations in Canada?s conifer forests.

The heavyweight of the flower world never fit in with the other plants, until now. Scientists found the basketball-size bloom belongs to a plant family made up mostly of teeny blossoms.

For older adults, having a higher education level may mean a faster decline in word memory, according to a new study.

Nutrients in the soil can strongly influence the distribution of trees in tropical forests, a new study suggests.