Polar bears have been exposed to more viruses, bacteria and parasites in recent decades, a new study shows, possibly acquiring the germs in their diet.

Drones with lasers revealed hidden urban centers that may have aided trade and travel through mountainous regions during medieval times.

To fuel the insatiable energy appetite of artificial intelligence, tech companies are going big on small nuclear reactors. Last week, both Google and Amazon announced agreements with companies that ...

Astronomers have found a world shrouded in an atmosphere of water vapor, orbiting a star 100 light-years away.

Recent clinical trials of weekly insulin highlight how this formulation may be useful in managing diabetes, but the drug has limitations.

New video upsets the old notion that these birds of paradise use wing clapping to make percussive sounds while courting.

The summer after wildfire smoke blocked sunlight for long stretches, harvests at some almond tree orchards in California’s Central Valley dropped.

A new study comparing the health outcomes of Medicaid patients with and without a doula suggests the extra support during pregnancy may be beneficial.

Climate change is putting monarch butterflies’ overwintering forests in Mexico at risk. Could planting new forests solve that problem?

The United States’ reputation as an exemplar of democracy appears to be eroding. In a poll taken earlier this year, almost three-quarters of U.S. respondents agreed that the country’s democracy “used ...

The podcast ‘Does It Fly?’ asks whether the technology of Star Trek, Doctor Who and other popular sci-fi shows could really work.

The annual Small World photomicrography competition, now in its 50th year, puts life’s smallest details under the microscope.