Mirzakhani was a professor at Stanford University and the only woman to win the Fields Medal in mathematics
Authorities say the bodies of 11 women and 15 children have been recovered in the Naf River at Teknaf in Cox's Bazar
Some 75 objects were found in a collector's home in a suburb north of Buenos Aires; originals may have belonged to high-ranking Nazis in Germany during WWII
Far out in the Atlantic, Irma is expected to fluctuate in strength for the next several days
Officials say it appears to have been a test of a key technology North Korea must master before it can develop a missile capable of striking the U.S. mainland with a nuclear weapon
Kurdish forces, a partner in the U.S. battle against ISIS, are facing off with Turkey, an American NATO ally. CBS News foreign correspondent Holly Williams reports.