Jad Sleiman

That diagnostic gut feeling? It’s not magic. It’s based on data drawn from the senses and experience that can be quantified.

What happens when an outsider develops a stop strange smoking method that works, but can’t be explained by science.

All of Pa., except for Philly, will lift all COVID-19 restrictions at the end of the month. Mask-wearing will still be required. Here’s what you need to know.

Officials said a July 'second wave' had hit Philly with scant evidence, later admitting they'd called “a slight rise in cases" a wave to help avoid "uncontrollable spread."

After a slow start in December, the city has administered more than one million vaccines.

The CDC said it was investigating unusual clots in six women that occurred 6 to 13 days after vaccination with the Johnson & Johnson shot.

Myalgic encephalomyelitis is a mysterious disease long suspected of having a viral trigger. Recent focus on COVID long-haulers could bring new interest in this field.

The radio spectrum is a finite range of frequencies. We use pretty much all of it, for Wi-Fi, smart gadgets, radio. But what about scientists who rely on it?

The number of weekly vaccinations in Philadelphia has almost doubled after FEMA opened its site at the Pennsylvania Convention Center.

Delta smelt are very nearly extinct in the wild. Another fish - the wakasagi- is nearly identical and doing fine. Why do we try and save as many species as possible?

Struggling Philly restaurants and gyms may soon get a financial lifeline from the city. Applications for financial help will be accepted starting Thursday at 11 a.m.

The idea is to answer questions from seniors and those who do not have access to internet services, or who prefer the telephone.