By PETER ORSI
HAVANA -- It was the briefest of moments, just seconds, two presidents shaking hands and exchanging pleasantries amid a gaggle of world leaders together to honor the late Nelson Mandela.
It would hardly have been noteworthy, except the men locking hands in Johannesburg were Barack Obama and Raul Castro, whose nations have been mired in Cold War antagonism for more than five decades.
A single, cordial gesture is unlikely to wash away bad blood dating back to the Eisenhower administration. But in a year that has seen both sides take small steps at improving the relationship, the handshake stoked talk of further rapprochement.
"On the one hand you shouldn't make too much of this. Relations between Cuba and the United States are not changing tomorrow because they shook hands," said Geoff Thale, a Cuba analyst at the Washington Office on Latin America, a U.S.-based think tank.
By JON GAMBRELL, ALAN CLENDENNING and CHRISTOPHER TORCHIA
JOHANNESBURG -- Amid cheers and songs for the prisoner who became peacemaker, President Barack Obama energized tens of thousands of spectators and nearly 100 visiting heads of state Tuesday with a plea for the world to emulate Nelson Mandela, "the last great liberator of the 20th century."
Obama's eulogy was the rhetorical highlight of a memorial service in which South Africans celebrated Mandela's life with singing and dancing, often during dignitaries' speeches. They also booed their own president and were chided by a top government official who said: "Let's not embarrass ourselves."
Lashing rain lent a freewheeling aspect to the memorial, with people taking shelter in the stadium's wide hallways, where they sang anti-apartheid anthems from the 1970s and 1980s. Foul weather kept many away, and the 95,000-capacity stadium was only two-thirds full.
Obama implored people to embrace Mandela's universal message of peace and justice, comparing the South African leader to Mahatma Gandhi, Martin Luther King Jr. and Abraham Lincoln. Mandela spent 27 years in prison under a racist regime, and promoted forgiveness and reconciliation when he was finally freed.
By FRANK JORDANS
BERLIN -- It's been likened to a parachutist trying to land on a mountaintop. Or a person attempting to leap from one speeding car to another.
The European Space Agency is planning to land an unmanned spacecraft on a comet next year in an unprecedented and exquisitely tricky mission that has been underway for almost a decade and is about to enter a critical phase.
The agency announced Tuesday that its Rosetta probe, which has been journeying through space since its launch in 2004, will be awakened from hibernation next month and will aim to drop a lander onto the icy surface of comet 67P/Churyumov-Gerasimenko on Nov. 11, 2014.
The plan is different from NASA's Deep Impact mission, which used a probe to fire a projectile into a comet in 2005 and create a plume of matter for scientists to study. That was just a drive-by compared with the rendezvous the Europeans are planning.