Ancient volcanic eruptions and peer pressure—from robotsSep 01, 2018
Several thousand years ago the volcano under Santorini in Greece—known as Thera—erupted in a tremendous explosion, dusting the nearby Mediterranean civilizations of Crete and Egypt in a layer of white ash. This geological marker could be used to tie together many ancient historical events, but the estimated date could be off by a century. Contributing Correspondent Lizzie Wade joins host Sarah Crespi to talk about a new study that used tree rings to calibrate radiocarbon readings—and get closer
What lives in the ocean’s twilight zone? New technologies might finally tell usSep 01, 2018
The sea's murky depths might host more life than we thought. That's the preliminary conclusion of scientists who this week completed the inaugural cruise of the Ocean Twilight Zone (OTZ) initiative, a 6-year, $35 million effort that is using innovative technologies—and an unusual funding model—to document the ocean's mysterious midwater layer.
Powerful new battery could help usher in a green power gridAug 31, 2018
Lithium-ion batteries power everything from our smartphones to our cars. But one of their most promising replacements is lithium-oxygen batteries, which in theory could store 10 times more power. The only problem: They fall apart after just a handful of charging cycles. Now, researchers have found that running them at high temperatures—along with a couple of other fixes—can push them to at least 150 cycles. Although they would be too hot to handle in phones, lithium-oxygen batteries the size of