Iranian police used tear gas and electric prods to crack down on the country's biggest antigovernment protests in at least a year, as demonstrators buoyed by activism across the Middle East returned to the country's streets by the tens of thousands Monday...

If you grew up thinking there were nine planets and were shocked when Pluto was demoted five years ago, get ready for another surprise. There may be nine after all, and Jupiter may not be the largest...

With the old pharaoh gone, the hunt for his gold begins. A senior Western intelligence official tells The Daily Beast that European spy agencies have detected efforts in recent weeks by former Egyptian president Hosni Mubarak and his family to shift their assets, believed to total in the billions and perhaps tens of billions of dollars, to bank accounts and investments where they cannot be easily traced in a post-Mubarak Egypt...

A court in Pakistan issued an arrest warrant Saturday for former Pakistani President Pervez Musharraf in connection with the assassination of former Prime Minister Benazir Bhutto, a public prosecutor told CNN...

The anniversay will probably be observed in silence. A week from Tuesday, when the Supreme Court returns from its midwinter break and hears arguments in two criminal cases, it will have been five years since Justice Clarence Thomas has spoken during a court argument...

Egypt is beginning a new political era after mass protests forced President Hosni Mubarak to stand down following 30 years in power. Follow live updates...

Demonstrations in Algeria inspired by popular protests in Egypt and elsewhere in the Middle East appeared to have been largely quelled Saturday by Algerian security forces, which prevented demonstrators from embarking on a planned march through the capital...

Thousands of secessionists protested in Yemen today in an example of how disparate movements across the Middle East are tapping the anti-regimne fervor for their own disparate aims...

A new study finds that many women with early breast cancer do not need a painful procedure that has long been routine: removal of cancerous lymph nodes from the armpit. The discovery turns standard medical practice on its head. Surgeons have been removing lymph nodes from under the arms of breast cancer patients for 100 years, believing it would prolong women’s lives by keeping the cancer from spreading or coming back...

Three Weeks in Egypt: 48 photos.