News

Astronomy

Telescope unveils a stellar deception

A heavenly masquerade may shed light on the nature of astrophysical jets—the beams of material spewed by a wide variety of celestial objects.

Earth

Girls may face risks from phthalates

The high incidence of premature breast development in Puerto Rican girls has been linked with phthalates, a family of ubiquitous pollutants found in plastics, lubricants, and solvents.

Materials Science

Cathedral has weathered London’s acid rain

A decrease in acid rain seems to be responsible for newly reported reduced deterioration rates of St. Paul's Cathedral in London.

Paleontology

Teeth tell tale of warm-blooded dinosaurs

Evidence locked within the fossil teeth of some dinosaurs may help bolster the view that some of the animals were, at least to some degree, warm-blooded.