We all know too much sodium in our diet can be bad for our health. It can lead to high blood pressure, heart disease, strokes and more. The U.S. dietary guidelines made specific recommendations last year for African Americans to reduce their intake. But why is it so hard to cut back?
Speaker John Boehner didn't provide much reason Friday to hope that efforts to avert a federal government shutdown next week wouldn't go to the 11th hour like all congressional spending negotiations since last November's election.
Asked at a brief availability with journalists in the House Press Gallery if he had talked with Sen. Harry Reid, the Nevada Democrat who sets the Senate's agenda, Boehner said:
"I had a conversation with the Senate majority leader before I came down. There wasn't much progress made."
Perched on a mesa just above Flagstaff is the historic Lowell Observatory, founded back in the days of the Wild West. Observatory director Jeffrey Hall talks about landmark discoveries made there, like 'Planet X'--later renamed Pluto--and the exoplanets astronomers are spotting there today.
The Grand Canyon may seem to be a simple case of "river carves rock," but to geologists, its formation is still puzzling. Ira Flatow and guests discuss the canyon's mysteries, and the scientific sleuthing being done to solve them--millions of years after the Colorado River carried off the evidence.
The Flagstaff Festival of Science gets underway this week. Ira Flatow talks with two festival participants about some of the highlights: Astronaut John Grunsfeld previews a talk on the Hubble Telescope and archeoastronomer Bryan Bates tells what the Mayans knew about 2012.
Record breaking fires in the Southwest have burned thousands of acres, disrupting people and animals, and leaving muddy, flood-prone landscapes in their wake. Ira Flatow and guests discuss fire ecology, and how new forest management strategies may help stifle the blazes.
The perennial presidential candidate: Like the Energizer Bunny, he just keeps going and going. Like Old Man River, he keeps on rolling along. And he is held up as a pure example from the high school civics class in which we were taught that in America anyone can run for president.
He is also, like the majority of people who seek office, an also-ran.
NASA has updated its news on the pending descent of the Upper Atmosphere Research Satellite, and here's the headline: the satellite's re-entry has been pushed back. The UARS is now expected to plunge towards Earth late today or early Saturday, EDT.
The main drag on the satellite's speed - solar activity - is no longer the main reason why the spacecraft is slowing down. Its path, speed and spin are now so unpredictable that scientists say they cannot estimate when it will fall.
Lead singer of the fake rock band Spinal Tap, David St. Hubbins, famously uttered these words in the 1984 mockumentary This Is Spinal Tap: "Dozens of people spontaneously combust every year. It's just not widely reported."
And so an obscure phenomenon exploded into pop culture's collective consciousness.
The president of the Palestinian Authority handed United Nations chief Ban Ki-moon an application that asks the world body to recognize Palestine as a member state. The dramatic move caps months of diplomatic wrangling in which the United States and Israel tried to dissuade Mahmoud Abbas from reaching this point.
Ban Ki-moon's spokesperson made it official on Twitter, saying:
President Abbas just handed the Palestinian application to the Secretary-General.