Libyan rebel fighters raid a house in the capital Tripoli on Tuesday as they search for supporters of ousted leader Moammar Gadhafi. The rebel leadership is trying to get various rebel factions to work together to create a new government and security force.
Libyan rebel soldiers stand guard Monday at the last outpost before the desert town of Bani Walid. The town is one of the few places still controlled by Gadhafi supporters, and rebels have been preparing for an assault.
Rebel soldiers in the streets of Tripoli are still savoring the ouster of Moammar Gadhafi and his forces. But rebel commanders are facing the difficult task of uniting disparate militias and consolidating their powers.
By some accounts, members of a newly formed security council are spending more time vying for power among themselves than they are in ensuring security.
At a checkpoint in Tripoli, young men in scavenged military garb chant, "God is greatest."
Credit Brett Eloff via Lee Berger / University of Witwatersrand
The fossil of Australopithecus sediba could be the long-sought transition between ape-like ancestors and the first humans. "It shows a small brain, but a brain that's beginning to reorganize in some ways that resemble our brain," says anthropologist Lee Berger.
A pair of fossils from a South African cave have scientists both excited and puzzled. Scientists say the fossils — an adult female and a juvenile — could be the long-sought transition between ape-like ancestors and the first humans.
The bones belong to creatures related to the famous Lucy fossil found in Ethiopia in the 1970s, but their owners lived more recently, just two million years ago.
Women who didn't get all three doses of HPV vaccine, as is recommended, were still protected against the virus that causes cervical cancer, a new study finds. If that result holds up, it could become easier and less expensive to protect women against this common form of cancer.
"In a win for the Obama administration, a federal appeals court in Virginia today tossed out two lawsuits challenging the constitutionality of the sweeping law overhauling the health care system," our colleague Scott Hensley writes over at the Shots blog.
The seemingly unbroken run of news this year about earthquakes, floods and wildfires will prompt lots of discussion about how and where houses get built, in hopes of making them safer.
But chances are that few regulatory changes will actually occur.
Rewriting the codes that regulate building practices is a long, drawn-out process that encounters push-back every step of the way from home builders and other property-rights advocates, because of their concern about the impact on the cost of construction.
Ever since President Reagan's 1982 State of the Union, part of the story of presidential addresses to Congress has been who gets invited to sit with the first lady in the gallery.
Reagan's A-list guest was Lenny Skutnik, who two weeks earlier was among the heroes who helped pull people from the icy waters of the Potomac River after an Air Florida jet crashed shortly following takeoff from National Airport (now known as Reagan National Airport).
In West Virginia, an Appalachian mountain is being transformed into a vast Boy Scout camp. It's more than 10,000 acres and will cost the Boy Scouts of America more than $400 million to build The Summit Bechtel Reserve, also known simply as the Summit.
The year-round high-adventure camp will soon be the permanent home of the National Scout Jamboree — the next one is in 2013 — and the camp will host the 2019 World Jamboree. The Boy Scouts announced on Thursday that they received $85 million in new gifts to help the effort.