音频下载 Two views of a composite reconstruction of the earliest known Homo sapiens fossils from Jebel Irhoud in Morocco, based on micro computed tomographic scans of multiple original fossils, are shown in this undated handout photo obtained by...

音频下载 Hundreds of people protest in New York City on June 1, 2017 after President Trump declared that the U.S. is withdrawing from the Paris climate agreement. (Photo by Michael Nigro/Sipa via AP Images)) Many American states, cities and busin...

音频下载 FILE - This undated colorized transmission of an electron micrograph file image made available by the U.S. Centers for Disease Control and Prevention shows an Ebola virus virion. Scientists say they have discovered a possible cure for al...

音频下载 About 110 million years ago, this plant-eating armored nodosaur walked the land. Now it is a one-in-a-billion best preserved dinosaurs. (Photo courtesy Robert Clark / National Geographic) About 110 million years ago, a large plant-eating...

音频下载 This March 5, 2017 photo shows travertine pools with white films of carbon fused with calcium, a chemical process being explored by a geological research project, in the al-Hajjar mountains of Oman. (AP Photo/Sam McNeil) Scientists have...

音频下载 Regina Dugan, vice president of engineering of Building 8 at Facebook, speaks on stage during the second day of the annual Facebook F8 developers conference in San Jose, California, April 19, 2017. Facebook is developing a technology tha...

音频下载 Runners make their way down the Champs Elysees avenue at the start of the 41st Paris Marathon in Paris, Sunday, April 9, 2017. (AP Photo/Thibault Camus) Very small pieces of plastic, called microfibers, are polluting rivers and oceans. T...

音频下载 First-place award for NASA's 3-D Printed Habitat Challenge Design Competition of a Mars habitat. Concept by Team Space Exploration Architecture and Clouds Architecture Office of New York. (Credit NASA) Human exploration of Mars is now an...

音频下载 Harvard University researchers have come up with an interesting potential explanation of fast radio bursts. (Harvard) The idea may be a little out of this world. Ten years ago, scientists started noticing very brief, but powerful radio b...

音频下载 Google and Levi's have teamed up to create the world's first smart jacket that communicates with mobile devices. A jacket that communicates with electronic devices is the latest invention in wearable technology. The smart jacket was deve...