A recently discovered comet is closer than it's ever been to Earth, and stargazers in the Northern Hemisphere finally get to see it.

Called Pan-STARRS, the comet is passing within 100 million miles (160. million kilometers) of Earth on Tuesday, its closest approach. The ice ball will get even nearer the sun this weekend — just 28 million miles (45 million kilometers) from the sun. That's within the orbit of Mercury.

Nearby the big city rumbles, but one feels almost transported to a quiet forest village when standing amid a colony of Finnish wooden houses in Warsaw's government district.

The homes, erected as temporary housing in the destroyed capital just after World War II, have dwindled over the years from 90 to about 25. Now the surviving structures have become a point of contention between their inhabitants and a city government keen on tearing them down to make way for new developments.

Hip-hop artists including rappers Nas and Somalia-born K'naan will take center stage in an unexpected place next year: as part of next season at the Kennedy Center in Washington.

The center announced Tuesday that its 2013-2014 season would include the week long festival "One Mic: Hip-Hop Culture Worldwide." It will also feature an international theater festival featuring works from at least 10 different nations and new American works in theater, opera and music.

Holding a 3-0 lead from the away leg, it seems only a total collapse by Juventus against Celtic can prevent the Italian team from booking a place in the Champions League quarterfinals.

Juventus is expected to finish off the job at home in the return leg of its last-16 matchup on Wednesday, and the players have been urging against complacency.

North Korea vowed Tuesday to cancel the 1953 cease-fire that ended the Korean War, citing a U.S.-led push for punishing U.N. sanctions over its recent nuclear test and ongoing U.S.-South Korean joint military drills.

North Korea's Korean People's Army Supreme Command warned of stronger additional countermeasures in a statement that came amid reports that Washington and North Korean ally Beijing have approved a draft of punishing sanctions for a U.N. Security Council resolution responding to North Korea's Feb. 12 nuclear test. The draft is expected to be circulated at the U.N. this week.

Pete Sampras believes tennis is free of performance-enhancing drugs now, as well as during his 14-year pro career that ended in 2002.

The winner of 14 Grand Slam titles said other than "a random case here and there" he doesn't see the top players engaging in doping.

Dwyane Wade had 32 points, 10 rebounds and seven assists and LeBron James shrugged off a sore left knee to score 20 points and grab 10 rebounds as the Miami Heat earned their club-record 15th straight victory with a 97-81 win over the Minnesota Timberwolves on Monday.

Chris Bosh added 11 points and nine rebounds, and James played 35 minutes despite being listed as a game-time decision with a twisted left knee.

Officials said Tuesday that the Egyptian president is considering whether to give the military full control of the restive city of Port Said after days of deadly street clashes stoked by excessive force used by riot police.

The officials said Mohammed Morsi met Tuesday with his security chief and top military officers to discuss pulling out the police and putting the military in charge of the Suez Canal city to defuse tensions.

A U.N. aid agency has canceled the marathon in Gaza following a ban on women runners imposed by the territory's militant Islamic Hamas rulers.

UNWRA, which assists Palestinian refugees and also sponsors and organizes the event, announced on Tuesday that plans for the April race have been scrapped.

Hybrids aren't just for fuel economy any more.

McLaren on Tuesday unveiled a sleek hybrid supercar at the Geneva Motor Show. Sculpted from carbon fiber, in a glittery racing yellow set off by hash-marked slate gray, the McLaren P1 cuts a racetrack figure while boasting superior — for its class — emissions under 200 grams per kilometer. That compares with over 300 grams/kilometer for a super car without hybrid.