U.S. President Barack Obama said late Tuesday the American people have "picked ourselves up" and fought back during tough economic times, declaring after winning re-election that the "best is yet to come."

"In this election, you, the American people, reminded us that while our road has been hard, while our journey has been long, we have picked ourselves up, we have fought our way back," Obama said at a triumphant victory party in Chicago.

The spade-toothed beaked whale is so rare that nobody has seen one alive, but scientists have proof the species still exists.

Two skeletons were identified as belonging to the species after a 17-foot whale and her calf beached themselves in New Zealand in 2010. Scientists hope the discovery will provide insights into the species and into ocean ecosystems.

Greek, British and Israeli scientists on Monday received the European Commission's first Marie Curie prizes for scientific research, a statement said.

In the category of "promising research talent", Gkikas Magiorkinis of Greece was rewarded for his work on tracing how the Hepatitis C virus has spread around the world.

Multivitamins might help lower the risk for cancer in healthy older men but do not affect their chances of developing heart disease, new research suggests.

Two other studies found fish oil didn't work for an irregular heartbeat condition called atrial fibrillation, even though it is thought to help certain people with heart disease or high levels of fats called triglycerides in their blood.

Researchers are reporting a key advance in using stem cells to repair hearts damaged by heart attacks. In a study, stem cells donated by strangers proved as safe and effective as patients' own cells for helping restore heart tissue.

The work involved just 30 patients in Miami and Baltimore, but it proves the concept that anyone's cells can be used to treat such cases. Doctors are excited because this suggests that stem cells could be banked for off-the-shelf use after heart attacks, just as blood is kept on hand now.

A federal judge in Madison, Wisconsin, on Monday threw out a suit by Apple Inc. claiming that Google subsidiary Motorola Mobility is seeking unreasonably high license fees for the use of patents on wireless technology.

The suit is part of a world-spanning battle between Apple and Google, whose Android software powers the smartphones that compete with Apple's iPhone. Google bought Motorola Mobility, a once pioneering maker of cellphones, this summer to gain control of its patents and gain leverage against Apple in its court battles.

At least 131 people were killed as bombings, clashes and air strikes shook Syria on Tuesday, a rights watchdog said.

In the capital Damascus, gunmen shot and killed the brother of Syria's parliament speaker as he drove to work, the state-run news agency reported.

Playing in his opening match at the ATP finals, Novak Djokovic dived right in.

The top-ranked Serb twice landed hard on the court Monday at the O2 Arena, but it didn't stop him from beating Jo-Wilfried Tsonga 7-6 (4), 6-3 and setting up a Wednesday showdown with Group A rival Andy Murray.

The New York Knicks produced another authoritative performance to beat the Philadelphia 76ers 110-88 on Monday, bringing up their first 3-0 start to a season for 13 years.

Carmelo Anthony scored 21 points and JR Smith had 17 for New York, which is showing its season-opening win over the Miami Heat was no fluke, cruising to another victory. The sum total of their winning margins over the first three games is 58 points.

Manchester United will unveil a statue of revered manager Alex Ferguson at Old Trafford on November 23, the day before his team's Premier League match against Queen's Park Rangers.

It will celebrate the 26th anniversary of Ferguson's first game in charge of United — against QPR in 1986.