Robert Fischell invented the rechargeable pacemaker and the implantable insulin pump — not to mention created the precursor to GPS. The 87-year-old shares a peek into his creative process.

Bigeye at Rapture Reef, a part of the Northwestern Hawaiian Islands Marine National Monument. Within this marine protected area, fish species can rebound. Photo by the NOAA National Ocean Service.

Given climate change, coral bleaching, ocean acidification and overfishing, it can be easy to feel depressed about our oceans. But when you look at the big picture of ocean health, good news emerges.


Ancient Peru was home to many cultures, most of them still mysterious. But as Sarah Parcak points her satellite-archaeology lens (and her new citizen-explorer project) at the Peruvian wilderness, the invisible past is primed to make a remarkable comeback.


The drive to hook up a billion Indian people to the internet sounds daunting — but it may well make the internet better for everyone.


You don’t “find your calling,” you fight for it — and other lessons from people who found their passion (sometimes late in life).

2_Thomas Peschak_curious snapper

Thomas Peschak takes stunning, up-close pictures of starfish, sharks and whales. His goal? To make us fall in love with them so much that we might even care about preserving the oceans.


Archaeology is a puzzle. For Sarah Parcak, the arduous process of trying to find ancient treasures is made exponentially easier by satellite imagery.