Science

  • April 12, 2013    

    Elvis Presley receives the Salk polio vaccine in 1956. Awareness about the vaccine led to the end of polio in the U.S. Most babies today still receive the injection. Photo courtesy of March of Dimes. April 12, 1955, was supposed … Continue reading

  • April 10, 2013    

    More than 1 million visitors flock to Washington, D.C. each spring to view the cherry trees. Photo by Rebecca Jacobson. Every spring in Washington, D.C., the tree paparazzi come out. As the 3,700 ornamental cherry trees along the National Mall … Continue reading

  • April 9, 2013    

    A gelada baboon in Simien Mountains National Park, Ethiopia. Photo by A. Davey via Flickr. Scientists studying the evolution of speech have long puzzled over why there are no good models in primates. While primates share many traits with humans … Continue reading

  • April 8, 2013    

    Author Nicco Mele writes about technology’s influence on politics in “The End of Big.” He sat down with PBS NewsHour political editor Christina Bellantoni. I’ve long been fascinated with the fact that technology can make the world a smaller place. … Continue reading

  • April 5, 2013    

    The parachute for the Mars Science Laboratory mission to Mars opened before launch. Photo by NASA/JPL-Caltech. A newly released series of images snapped by NASA’s Mars Reconnaissance Orbiter reveals that the Curiosity rover’s parachute has been flapping in the thin … Continue reading

  • April 3, 2013    

    A scientist from the National Center for Toxicological Research analyzes microarray results to measure and assess the level of genes found in a tissue sample. FDA photo by Michael J. Ermarth. Rebecca Riggins, an assistant professor of oncology at Georgetown … Continue reading

  • April 3, 2013  

    An oil pipeline rupture caused the evacuation of more than 20 homes in Mayflower, Ark. The accident raised questions about the safety of the proposed Keystone Pipeline extension. Judy Woodruff hears debate from Anthony Swift of the Natural Resources Defense Council and Andrew Black of the Association of Oil Pipelines. Continue reading

  • April 3, 2013  

    Major science organizations rely heavily on government funding, including top federal programs like the National Institutes of Health, the Centers for Disease Control and NASA. Jeffrey Brown talks to Matt Hourihan of the American Association for the Advancement of Science on how the sequester will impact researchers. Continue reading

  • April 2, 2013    

    Revisit NewsHour’s interview with retiring NASA climate scientist James Hansen, who discussed why summer droughts in the summer of 2012 were linked to climate change. James Hansen, an outspoken advocate for action on climate change, announced Monday that he is … Continue reading

  • April 2, 2013    

    Swarms of cicada nymphs emerge from the ground. Photo by Michael Raupp. On Friday, we wrote about the impending arrival of the 17-year cicadas — the root sucking, egg laying, battery-sized bugs that will emerge from the earth en masse … Continue reading