Millions of Nigerians turn outto vote in a presidential election that analysts say is too close to call betweenPresident Goodluck Johnathan and former military dictator Muhammadu Buhari. BokoHaram extremists have vowed to disrupt the elections, calling democracy a corruptwestern concept.

 

Two Russians and an American floatedinto the International Space Station about 8 hours after launching fromKazakhstan. Scott Kelly and Mikahil Kornienko are slated to spend a year awayfrom earth, about twice as long as a standard mission.

 

And two Andean bear cubs madetheir public debut Saturday at the national zoo. The cubs were born at the zooin November and were named Mayni and Muniri after a public vote.