Science

Why the first flowers may have looked like magnolias

By Mario Vallejo-Marin, The Conversation

An international team of botanists has achieved the best reconstruction to date of an ancestral flower.

This gene editing milestone raises big ethical questions

By PBS News Hour

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We are running out of effective antibiotics fast

By Miles O'Brien

Each year, superbugs -- viral bacterial infections resistant to common antibiotics -- infect more than two million Americans, killing at least 38,000. As the list of antibiotic-resistant bacteria grows, so have the extraordinary efforts to prevent the spread of infection…

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Interior official turns whistle-blower, claiming retaliation for climate change work

By PBS News Hour

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U.S. scientists are fixing genetic defects in human embryos. Should you be nervous?

By Nsikan Akpan

For the first time, U.S. scientists have genetically edited human embryos with CRISPR, thanks in part to regulatory loopholes.

Study confirms how lead got into Flint's water

By Roni Dengler

The absence of a water treatment -- called orthophosphate -- was a major contributor to lead contamination in Flint, University of Michigan chemists confirmed.

4 things you should know about ticks and Lyme disease this summer

By Teresa Carey

Tick season is in full swing, and with it comes Lyme disease. Here's what you should know about the condition and how it spreads, according to Dr. John Aucott of Johns Hopkins University.

Here's where climate change could generate toxic air pollution

By Nsikan Akpan

Climate-driven air pollution could cause 60,000 extra deaths annually by 2030 and more than 250,000 deaths per year by 2100, according to new research.