Iran issued a threat to a U.S. aircraft carier, today, which further complicates the tense relationship between the two countries. The threat comes just a day after Iran performed naval maneuvers in the Strait of Hormuz.
Science writer Kitty Ferguson sits next to Stephen Hawking in this undated photograph. Ferguson is the author of several books about physics, including Stephen Hawking: Quest for a Theory of Everything and Black Holes in Spacetime.
Make a list of the world's most popular scientists and it's likely Stephen Hawking's name will be near or at the very top of the list.
Hawking, the author of A Brief History of Time and a professor at the University of Cambridge, is known as much for his scientific contributions to theoretical cosmology and quantum gravity, as he is for his willingness to make science accessible for the general public, says science writer Kitty Ferguson.
Republican presidential candidates prepared Tuesday for their first major test of the primary season, making last-minute whistle-stops throughout Iowa in hopes of swaying many undecided caucus-goers.
Later tonight, Iowa Republicans will gather to cast ballots for the person they want to stand against President Obama in November. But after a bruising months-long campaign, more than a third of those participating in the caucuses say they still haven't made up their minds.
More than half of American public schools don't have a full-time nurse, and the situation is getting worse as school systems further cut budgets. This year, 51 were laid off in Philadelphia's public schools, 20 in a Houston suburb, 15 in San Diego and dozens more in other school systems nationwide.
Other schools have reduced their school nurse staffing.
After months of campaigning, it's finally caucus day in Iowa. Polls still show a fluid race, with former Massachusetts Gov. Mitt Romney, Texas Rep. Ron Paul and former Pennsylvania Sen. Rick Santorum heading the pack.
The man police called "the most dangerous arsonist in Los Angeles County," may have been angered by the immigration hearing of a family member.The Los Angeles Times reports that Harry Burkhart, a 24-year-old from Germany who was arrested and charged in connection to a string of arson fires in Los Angeles, went on an anti-American tirade recently.
A maker of Scotch whiskey plans to start selling its product in a can. You can buy a 12 ounce can — 80 shots of 80 proof whiskey — in a container that cannot be re-sealed. The company says it hopes to eventually develop a can you can close.