The Top 10 Science Stories of 2015

It's been a banner year for science, from medical breakthroughs to newly-discovered human ancestors, from genes to neurons — plus enticing findings from Mars, Pluto, and beyond. In my first …

100 Years of General Relativity

Einstein's masterpiece, 100 years old this year, continues to provoke. My cover story for Cosmos magazine on general relativity's first century — and where it may still take us.

The Science of Addiction

The accepted medical wisdom is that addiction is a disease. Neuroscientist and former addict Marc Lewis sees it differently. I review his book "The Biology of Desire" in the Globe …

Last Hominin Standing

How likely — or not — was the evolution of Homo sapiens? Was the appearance of an upright, intelligent ape predictable, or a mind-boggling stroke of luck? My feature story …