A source involved in the investigation says the missing airliner could have broken up at around 35,000 feet. Authorities widen search »
Billion $ Bracket Yahoo Sports
Today's Headlines
Weather
Visit Yahoo Weather for a detailed forecast.
Quotes Yahoo Finance
Visit Yahoo Finance to look up stock information.
Scores Yahoo Sports
Visit Yahoo Sports for the latest scores and news.
Featured Videos Yahoo Screen
Visit Yahoo Screen for featured videos.
Birthdays
Visit Facebook to see upcoming birthdays in your network.
Yahoo News with Katie Couric
Katie Couric introduces herself as the global anchor of Yahoo News.
Still no sign of Malaysian jet lost in 'unprecedented mystery'
"As far as we are concerned, we have to find the aircraft, we have to find a piece of the aircraft if possible," says a senior official.
Reuters45 mins agoUkraine seeks US help as Putin talks tough on Crimea
Ukraine sought urgent Western backing on Monday after Russian President Vladimir Putin insisted that Crimea had the right to join his country even while hinting at a readiness for dialogue. The pro-European team in Kiev that rode the wave of three months of deadly protests to topple a Kremlin-backed regime is running against the clock to preserve the territorial integrity of the culturally splintered nation of 46 million. The self-declared leadership on the predominantly ethnic Russian peninsula of Crimea has proclaimed independence from Kiev and set a March 16 referendum on switching over to Kremlin rule. The decision has been condemned by Western powers who are also furious at Moscow's seizure of Crimea in a lightning but bloodless operation that began days after the February 22 fall and subsequent escape to Russia of president Viktor Yanukovych.
AFP45 mins agoBig quake strikes off N. Calif., no tsunami threat
EUREKA, Calif. (AP) — A powerful magnitude-6.9 earthquake struck late Sunday night off the coast of Northern California, but there were no immediate reports of injury or damage and no danger of a tsunami, officials said.
Associated PressDefense set to grill accuser in Army sex case
RALEIGH, N.C. (AP) — Defense lawyers for an Amy general facing sexual assault charges say they plan to press his primary accuser on inconsistencies in her story.
Associated Press54 mins agoIditarod: 5 things to know about standout finishes
ANCHORAGE, Alaska (AP) — In the Iditarod Trail Sled Dog Race, there's always a heart-pounding thrill at the finish line in Nome, a rollicking frontier city on Alaska's western coast.
Associated PressNoah, Augustin lead Bulls over Heat 95-88 in OT
CHICAGO (AP) — Joakim Noah and Jimmy Butler understand it.
Associated PressAmericans riding public transit in record numbers
LOS ANGELES (AP) — Americans are boarding public buses, trains and subways in greater numbers than any time since the suburbs began booming.
Associated PressPutin defends separatist drive in Crimea as legal
KIEV, Ukraine (AP) — Russian President Vladimir Putin on Sunday defended the separatist drive in the disputed Crimean Peninsula as in keeping with international law, but Ukraine's prime minister vowed not to relinquish "a single centimeter" of his country's territory.
Associated PressPistorius murder trial moves into 2nd week
PRETORIA, South Africa (AP) — A security guard who said he spoke with Oscar Pistorius soon after the fatal shooting of Reeva Steenkamp was questioned by the defense Monday about his recollection of the sequences of the events that night.
Associated Press45 mins agoLack of passport checks expose air security flaw
PARIS (AP) — When you travel, airport security agents may pat you down, inspect your deodorant and scan your body from head to toe. But there's a good chance that no one's checking whether you're using someone's lost or stolen passport.
Associated PressAP PHOTOS: Teams drive toward Iditarod finish line
ANCHORAGE, Alaska (AP) — Mushers and their dogs are chipping away at the 1,000-mile Iditarod Trail Sled Dog Race as volunteers and city crews prepare for the coming onslaught of dog teams and spectators at the finish line in Nome.
Associated PressUS general's accuser was ambitious soldier too
FORT BRAGG, N.C. (AP) — The Army captain who has accused Brig. Gen. Jeffrey A. Sinclair of sexually assaulting her during their three-year relationship was an ambitious soldier with plans to make the military her career, much like the boss she loved and admired.
Associated Press25 injured as California school stage falls
ANAHEIM, Calif. (AP) — Investigators combed through a collapsed theater stage at a Southern California high school Sunday, trying to determine why it buckled during a performance and sent 25 students to the hospital, some with broken bones but most with minor injuries like bruises and scrapes, authorities said Sunday.
Associated PressWhy Malaysia Airlines jet might have disappeared
NEW YORK (AP) — The most dangerous parts of a flight are takeoff and landing. Rarely do incidents happen when a plane is cruising seven miles (11 kilometers) above the earth.
Associated PressFamily of Texas man on flight comforted by faith
KELLER, Texas (AP) — The brothers of a North Texas man who was aboard the Malaysia Airlines flight that went missing over the South China Sea said Sunday their family is leaning on faith and holding out hope for good news about the man they last saw about a week ago.
Associated PressVietnam says it cannot find object thought to be jet door
Searchers on ships worked throughout the night but could not find a rectangle object spotted Sunday afternoon that was thought to be one of the doors of a missing Boeing 777.
Associated PressPope Francis wants church to study civil unions, Cardinal Dolan says
Pope Francis wants the Catholic Church to study same-sex unions, Cardinal Timothy Dolan said on NBC's "Meet The Press" on Sunday.
2 dozen injured as school stage falls
ANAHEIM, Calif. (AP) — A stage at a Southern California high school collapsed during a performance, sending 25 students to the hospital with mainly minor injuries, authorities said.
Associated Press