Science

An experimental blood test was highly accurate at distinguishing people with Alzheimer’s from those without it in several studies, scientists report.

People most at risk for disease are often left out of clinical trials. But demand grows for assurances that the COVID-19 vaccine trial be diverse.

A telescope has captured a family portrait of another solar system with two planets posing directly for the cameras while orbiting a star like our sun.

China has launched its most ambitious Mars mission yet in an attempt to join the United States in successfully landing a spacecraft on the red planet.

Rich Americans produce nearly 25% more heat-trapping gases than poorer people at home, according to a comprehensive study of U.S. residential carbon footprints

The United Arab Emirates is sending a spacecraft into orbit around Mars, the first interplanetary mission from the Arab world.

In a reversal, Orange, Riverside and San Bernardino counties are now seeing higher rates of COVID-19 spread than L.A., long California’s coronavirus hot spot.

A Chinese company is boasting that its employees received doses of an experimental COVID-19 vaccine before the government approved testing in people.

Nearly 71,000 Americans died of overdoses last year, a record that predates the COVID-19 crisis. It may be even worse this year due to the pandemic.

A researcher at UC Riverside has found a naturally occurring protein molecule that appears to “cure” huanglongbing (HLB), otherwise known as citrus greening disease, which has devastated Florida’s citrus industry and threatens California’s.

If you decide to have an alcoholic drink, limiting yourself to one a day is best — for both men and women — according to new advice from nutrition experts.