The company is planning to extend its existing pipeline to the Gulf Coast. It also would add a secondary pipeline from Alberta, Canada to Nebraska that takes a more direct route than the one completed in 2010.

Like chimpanzees, dolphins are large-brained and highly social animals, but can they recognize themselves in a mirror? Psychologist and dolphin researcher Diana Reiss discusses her work with dolphin communication and cognition.

Modern brain-imaging techniques have given researchers an unprecedented level of detail about the structure of the brain, but are they any closer to puzzling out how the brain really works? Harvard neuroscientist Jeff Lichtman talks about the limitations of brain imaging, and the challenges of trying to use imaging techniques to decode the brain's behavior.

It is possible that there are many other universes that exist parallel to our universe. Theoretical physicist Brian Greene, author of The Elegant Universe, explains how that's possible in the new book, The Hidden Reality.

There's not a rib to be found inside the McRib sandwich, but that pork patty drenched in barbecue sauce represents one of the greater innovations in meat science of the last century.

A hundred years ago, two teams were racing to the South Pole. The Norwegian team led by Roald Amundsen made it first, beating British explorer Robert Scott. But only Scott did pioneering science--and photography--along the way. Ira Flatow and guests discuss the achievements of the first Antarctic expeditions.

Reporting in Nature Biotechnology, researchers write of genetically engineering mosquitoes to pass lethal genes to their offspring, in hopes of crashing populations of one dengue-transmitting species. Science writer Bijal Trivedi talks about recent tests of the bugs, and the concerns of critics.

To feed, the hawk moth unrolls a long proboscis, sticks it in a flower like a straw, and slurps up nectar. It looks like a hummingbird feeding. Like the hummingbird, the moth has to be stable in the air to get a drink. Biologist Ty Hedrick filmed the moths with high-speed video to try to understand how they hold steady.

What if the laws of physics aren't the same all over the universe, but vary from place to place? Michael Murphy of the Swinburne University of Technology discusses research published in the journal Physical Review Letters indicating that the value of one basic physical property, the fine structure constant, may vary with location in interstellar space.