Warming weather usually slows transmission of the virus, but it is not clear that this outbreak is fading, experts said.

A slew of opponents of the tax are running in the city’s election Tuesday and beverage industry has spent more than $600,000 on ads aiming to turn public opinion against it.

Grapefruit trees need light, bees — and a temperature gradient.

Thermal imaging reveals surprisingly little “glue” between the famous rock’s face and sheets that are peeling off it.

People who came from higher social classes were more likely to have an inflated sense of their skills, a new study found. This overconfidence was interpreted by strangers as competence.

Little appreciated but vastly important, metrology celebrates a long history with the adoption of new definitions for key units.

After years of preparation, new definitions for the basic units of mass, temperature and more have now gone into effect.

Economist Emily Oster explains how to make the best decisions for your particular child, using the scientific evidence at hand

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The E.P.A. plans to change the way air pollution health risks are calculated in a way that would sharply lower estimated deaths from new, looser rules for coal plants.