Health & Science

For thousands of years, humans have obsessed over Mars from afar. At first, maybe it was the fact that Mars stands out in the night sky b ...

More than 1,500 of the youngest eligible Delaware children have received their first Pfizer shot in less than a week. About 76,000 more can get vaccinated.

The contagious delta variant is driving up COVID-19 hospitalizations in the Mountain West and fueling disruptive outbreaks in the North.

Home kits are not as accurate as the PCR tests, but they have the advantage of giving results within minutes instead of days.

A new analysis finds that of the many pledges to zero out climate emissions, just four — Chile, Costa Rica, the E.U. and the U.K. — have concrete plans to achieve that.

Dr. Thomas Farley was asked to resign for ordering remains of MOVE bombing victims to be destroyed. He's now been hired by D.C.'s Health Department.

About 3% of children in the age group authorized last week to get a low-dose vaccine will have their first shots by Wednesday, according to the White House.

Options in Philadelphia include pharmacies, health clinics, pediatricians, and school pop-ups.

With about 4,700 different PFAS, these "forever chemicals" are a formidable issue to tackle. The Center for PFAS Solutions can test for 40 of them.

Zachary Bell wants to create a positive online community with fellow veterans through humor, inside jokes, and messages about mental health.

The risks may be cumulative; those who faced more incidents of discrimination had an even higher risk of future problems, researchers found.

The country's top infectious disease doctor says he is looking for "a level of control" over COVID-19 such that it is less disruptive to society.

Universal Family Schools said it is taking a community-focused approach by hosting vaccine clinics at its various branches across the Philly region.

About 28 million kids ages 5 to 11 are newly eligible for shots now that the Pfizer vaccine is approved for the age group.