The area around the confluence of the Silverthrone and Klinaklini Glaciers in southwestern British Columbia provides a glimpse into how the terrain traveled by Native Americans in Pleistocene times may have appeared. David J. Meltzer/Science hide caption
For 3-D food printers, chocolate is a good material to start with, because it's fairly simple to keep it liquid inside the printer cartridge and solid once it drops out. Courtesy of Smart Gastronomy Lab, University of Liège hide caption
Christopher Day, the dining room manager at Eleven Madison Park, is also the man behind its tea program. "My goal has always been to put together a tea list with the same standard and rigor as you would with wine," he says. Kathy YL Chan for NPR hide caption
One of the first signs drivers see on the way into Unionville, Mo. is this billboard advertising cardiology at Putnam County Memorial Hospital. Offering specialty services, like cardiology and psychiatry turned the hospital around, community leaders say. Bram Sable-Smith/KBIA/Side Effects Public Media hide caption
The SpaceX Falcon 9 rocket and Dragon spacecraft break apart shortly after liftoff from the Cape Canaveral Air Force Station in Cape Canaveral, Fla., on June 28. SpaceX CEO Elon Musk said Monday the failure of a steel strut likely caused the rocket to explode. John Raoux/AP hide caption
Lee Perry-Gal measures chicken long bones at the zooarchaeology lab, Zinman Institute of Archaeology, University of Haifa. Courtesy of Guy Bar-Oz hide caption
As useful and tasty as they are, swine have not been universally adored. iStockphoto hide caption
Stephen Hawking at The Royal Society on Monday. Matt Dunham/AP hide caption
Australian surfer Mick Fanning narrowly escapes a shark attack. World Surfing League hide caption
In this colorized image of a brain cell from a person with Alzheimer's, the red tangle in the yellow cell body is a toxic tangle of misfolded "tau" proteins, adjacent to the cell's green nucleus. Thomas Deerinck/NCMIR/Science Source hide caption
Greg O'Brien and his wife are finding it more difficult to drive to and from their family's secluded house on Cape Cod. As they move out and move on, O'Brien has discovered a bittersweet trove of memories. Sam Broun/Courtesy of Greg O'Brien hide caption
Iran's Supreme Leader Ayatollah Ali Khamenei delivers a sermon during morning prayers for the Eid al-Fitr holiday, marking the end of the holy month of Ramadan. He signaled his approval of the nuclear agreement with Western powers but reiterated that Tehran's policy toward the "arrogant" United States would not change. Reuters/Landov hide caption
Members of the New Horizons science team react to seeing the spacecraft's image of Pluto on Tuesday, before its closest approach. Bill Ingalls/NASA via AP hide caption
Slum dwellers near Calcutta get their water from a municipal pipe. Water coming out of the tap on the left is for bathing and so is untreated. The blue Zimba chlorinator is hooked up to the tap on the right, which is used for drinking water. Courtesy of Suprio Das/Zimba hide caption
Putting some spin on the ball. Veritasium hide caption
In the center left of Pluto's vast heart-shaped feature – informally named "Tombaugh Regio" — lies a vast, craterless plain that appears to be no more than 100 million years old, and is possibly still being shaped by geologic processes. NASA/JHUAPL/SWRI hide caption
"What has happened in the last ten years, has been a remarkable increase in actual number of people who are dying or are not able to get better because they carry a resistant infection."--Ramanan Laxminarayan Courtesy of TEDMED hide caption
"We've under-priced water, we've over-exploited it, we don't regulate how people pump groundwater out of the ground.... we just use too much."--Jonathan Foley Courtesy of TEDxTC hide caption
"There's a saying in Suriname that I dearly love: 'The rainforests hold answers to questions we have yet to ask.' But as you all know, it's rapidly disappearing."--Mark Plotkin Ryan Lash/TED hide caption
"When you put a limitation on resources, you remove the limitation on creativity because necessity is the mother of invention."--Navi Radjou James Duncan Davidson/TED hide caption