Capping more than a week of public mourning, North Korea staged a dramatic state funeral for its late leader, Kim Jong Il. Leading the ceremonies was Kim's third son and apparent successor, Kim Jong Un.
North Korean media reports portray the younger Kim, who is reportedly in his late 20s, in full control of the impoverished, nuclear-armed country. But while consolidating his political power may be easy, establishing his legitimacy will be tougher.
Three years ago, scientists found plenty of cod in the region but data this season indicates just the opposite. Federal regulators say stocks are at such dangerously low levels, cod fishing might need to be shut down. Fishermen say they don't believe the reports.
Credit Isidore Szczepaniak / Golden Gate Cetacean Research
A harbor porpoise comes up for air near the Golden Gate Bridge. The porpoises are returning to the bay in growing numbers after a 60-year absence.
Credit William Keener / Golden Gate Cetacean Research
A group of harbor porpoises in San Francisco Bay, photographed from the Golden Gate Bridge. Harbor porpoises haven't been seen in the bay since the 1930s. Researchers believe World War II activity may have contributed to their disappearance. The Navy strung a seven-mile underwater net across the mouth of the bay to keep out enemy submarines.
Credit Lauren Sommer / KQED
Bill Keener (left) and Jonathan Stern search for porpoises under the Golden Gate Bridge. Water quality has dramatically improved since the 1970s, which may be bringing the porpoises back.
Something that has been missing from San Francisco Bay since World War II appears to be making a comeback: Harbor porpoises are showing up in growing numbers, and researchers are trying to understand why they're returning.
The walkway across the Golden Gate Bridge is almost always packed with people taking photos. But Bill Keener isn't here for snapshots of the stunning views. He's aiming his massive telephoto lens at a dark shape in the water 200 feet below.
2011 has been a momentous year in the 30-year-old AIDS pandemic.
The big breakthrough was the discovery that antiviral drugs can prevent someone who's infected with HIV from passing the virus to others. It's nearly 100 percent effective. That led President Obama to declare earlier this month that the U.S. will expand HIV treatment in hard-hit countries by 50 percent.
In 2011, IBM's stock rose more than tech hotshots Google and Apple. IBM is 100 years old, but it has totally remade its business for the 21st century.
"There is no such thing as an IBM PC," declares IBM managing partner Adam Klaber. More than 83 percent of their business is now services and software. The NYPD hired IBM to track crime. Telecom Bharti Airtel wanted to build wireless coverage in 16 African countries, so they went to IBM.
Oh, and which supercomputer became Jeopardy champion in 2011? IBM's Watson.
Ah, we still do the town on New Year's Eve, but tearing the goal posts down is now verboten. Deemed too dangerous. In fact, as our new year approaches, it's a good time to look back on several other things in sport that have long since faded away.
Who remembers, for example, that at the end of each inning in the field, baseball players would just chuck their gloves onto the grass behind their position, leaving the field littered with mitts. All game long.