Was Isaac Newton seeking the 'philosopher's stone'?
March 30, 2016, 3:34 p.m. by Michael Graham Richard
Before chemistry, there was alchemy, a philosophical and proto-scientific discipline full of mysteries.
Should pregnant women use DEET to deter mosquitoes and Zika virus?
February 2, 2016, 12:21 p.m. by Jenn Savedge
As cases of Zika-related birth defects continue to rise, pregnant women are left wondering which is the greater danger.
10 skin care ingredients to avoid during pregnancy
January 10, 2016, 3:02 p.m. by Jenn Savedge
You know what foods to sidestep, but what about the ingredients you use on your skin?
How do you clean up a contaminated river?
August 13, 2015, 10:10 a.m. by Stephanie Pappas, LiveScience
Officials are working to stem the flow of heavy metal-laden wastewater in Colorado.