When the Soviet Union splintered two decades ago, one of the biggest U.S. worries was how to ensure that the vast Soviet arsenal of nuclear weapons was kept secure.
The American response was the Cooperative Threat Reduction program of 1992. The U.S. provided money and expertise to lock down and track weapons of mass destruction and make sure they stayed out of the hands of rogue regimes or terrorists.
The program has been hailed as a great success, with thousands of Soviet nuclear weapons dismantled over the years.
For nearly a decade, scientists and Northwest tribes in Washington state fought bitterly over whether to bury or study the 9,500-year-old bones known as Kennewick Man. Scientists won the battle, and now, after years of careful examination, they're releasing some of their findings.
For starters, Kennewick Man was buff. I mean, really beefcake. So says Doug Owsley, head of physical anthropology at the Smithsonian's National Museum of Natural History, and the man who led the study of the ancient remains.
There's new information on the ongoing outbreak of a rare meningitis caused by a fungus that somehow got into a steroid drug. Federal officials now say the drug got injected into 14,000 patients — 1,000 more than earlier thought.
Ben Affleck's new thriller, Argo, chronicles a secret CIA rescue mission — a mission that remained classified for years. When details finally came to light, the operation sounded like something only Hollywood could come up with. As we find out, there's a reason for that.
It's 1979, and the Iranian public's hatred for their U.S.-backed shah erupts when he leaves the country. A crowd grows around the U.S. Embassy in Tehran — they're climbing the gates and taking dozens of Americans hostage.
Many Americans today feel like they've lost or are losing their shot at a college education because paying for it often seems out of reach. So how big of an issue is this in the presidential campaign?
Here's what President Obama has done to help families pay for college: He negotiated a deal with Congress this summer that kept the interest rate on government-backed Stafford loans from doubling for 7.5 million students.
The names Columbine and Virginia Tech have both become tragic shorthand for school shootings in America. In the wake of those shootings, schools have developed a fairly typical lockdown procedure when there's a threat: sound the alarm, call police, lock doors and stay put.
The standard school-lockdown plan is intended to minimize chaos so police arriving on the scene don't shoot the wrong people. Students practice following directions, getting into classrooms and essentially, waiting.
Here's an astonishing fact: Half of America's mushrooms are grown in one tiny corner of southeastern Pennsylvania, near the town of Kennett Square.
But why? It's not as though this place has some special advantage of climate or soil, the kind of thing that led to strawberry fields in Watsonville, Calif., or peach orchards in Georgia. Mushrooms can grow indoors. They could come from anywhere.
The words of the English poet William Blake still resonate 185 years after his death. Blake, who was also a painter and printmaker, wrote the famous lines, "Tyger! Tyger! burning bright / In the forests of the night."
Affirmative action in higher education appeared to take a potentially lethal hit on Wednesday, as the U.S. Supreme Court heard arguments testing the constitutionality of a race-conscious admission program at the University of Texas, Austin.
Two Americans have won the 2012 Nobel Prize in Chemistry. Robert Lefkowitz and Brian Koblika were awarded the prize for their work on protein receptors that tell cells what's going on around the human body. Their research has allowed drug makers to develop medication with fewer side effects. The pair with share the $1.2 million award.
Fifty years ago, Pope John XXIII launched a revolution in the Catholic Church. The Second Vatican Council opened on Oct. 11, 1962, with the goal of bringing the church into the modern world. Catholics could now hear the Mass in their local language. Laypeople could take leadership roles in the church. And the church opened conversations with other faiths.
For American nuns, Vatican II brought freedoms and controversies that are playing out today.