Solar plane on cross-country US trip
The first-ever manned airplane that can fly by day or night on the sun's power alone soared over the western United States late Friday on the first leg of cross-country journey.
Boston bombers planned July 4 strike: reports
Alleged Boston bomber Dzhokhar Tsarnaev has told investigators he and his brother had originally planned to commit suicide attacks during Fourth of July celebration.
US reels after 5-year-old kills sister with 'my first rifle'
The accidental shooting death of a two-year-old at the hands of her five-year-old brother has revived the perennial gun debate in the United States, where weapons are made just for kids.
Woman fugitive makes US 'most wanted terrorist' list
A woman who killed a police officer 40 years ago and later fled to Cuba has been placed on the FBI's list of "most wanted terrorists".
US studies find genetic links in aggressive cancers
Some of the most devastating forms of cancer have genetic similarities even though they strike different body parts.
Obama to talk trade, drugs at Central America summit
US President Barack Obama heads to Costa Rica on Friday for a summit with Central American leaders on trade, immigration and the drug war after renewing security ties with Mexico.
As war games end, N. Korea cools fiery rhetoric
After weeks of soaring tensions over US-South Korean war games that ended this week, North Korea has toned down its warlike rhetoric in what observers say is a sign that it may now be ready to talk.
US study sees China 'coercive power' on Japan
China will likely use its growing power to try to force its way with Japan but it is doubtful that Beijing will enter a Cold War-style confrontation with the United States.
Solar-powered plane to make first cross-US flight
An innovative solar-powered aircraft is set to launch Friday from California on a flight across the United States, the first of its kind aiming to showcase what is possible without fossil fuels.
US reconsidering whether to arm Syria rebels
The United States said Thursday it was taking a fresh look at whether to arm Syria's rebels as the Damascus regime pressed an assault on opposition forces in the embattled city of Homs.
Oil takes breather in Asia after strong rally
Oil prices took a breather in Asian trade Friday as investors locked in profits after a strong rally following the European Central Bank's decision to cut interest rates.
'Iron Man 3' blasts off US blockbuster season
"Iron Man 3" is expected to launch America's summer blockbuster season with a bang this weekend, having already taking global box offices by storm.
Spike in suicides among middle-aged Americans
Suicide rates are rising dramatically among middle-aged Americans, according to US government statistics, which showed a 28 percent spike from a decade ago in the number of people taking their own lives.
Jackson death doctor had huge debts, trial hears
Michael Jackson's doctor Conrad Murray was in dire financial straits when he was hired to care for the US superstar.
US has 'no current plans' to take Cuba off terror list
The United States does not foresee taking Cuba off its blacklist of countries accused of supporting terrorism, which also includes Syria, Iran and Sudan.
US releases pictures related to Benghazi attack
US authorities on Wednesday released pictures of three men it said were present during the September 11, 2012 attack on the US mission in eastern Libya, saying it wanted to question them.
New book to dig into alleged Boston bombers' past
A new book will explore the life of the Tsarnaev brothers, the ethnic Chechens accused of bombing the Boston marathon.
US appeals emergency contraception ruling
The US Department of Justice appealed Wednesday a federal judge's ruling ordering regulators to provide emergency contraception to women and girls of all ages.
Obama eyes Guantanamo envoy but closure path thorny
President Barack Obama may name a new envoy as a first step toward honoring his renewed pledge to close Guantanamo Bay, but the path to shuttering the "war on terror" camp seems as intractable as ever.
Facebook profit rise fueled by mobile ad growth
Facebook's profit in the first quarter of this year climbed as it used its grip on people's online social lives to challenge Google and Apple for revenue from mobile ads and apps.