From the Wires

Staples closing 225 stores

Forbes: The office-supplies retailer released disappointing fourth quarter earning results.

EU to offer aid package to Ukraine

WSJ: The European Union would make at least $15.12 billion in grants and loans available for Ukraine.

Daily sugar intake 'should be halved'

BBC: The World Health Organization advises people to halve the amount of sugar in their diet.

White House reveals 2015 budget

WSJ: President Obama proposed a $3.9 trillion budget package.

RadioShack to close 1,100 stores

Bloomberg: The electronics chain's shares slumped the most in more than four months.

Bill Gates regains spot as world's richest person

BBC: The Microsoft founder's total net worth was estimated at $76 billion.

West scrambles on Ukraine as Russia tightens grip in Crimea

New York Times: Western nations sought a political and economic response to the crisis in Ukraine.

Mt. Gox files for bankruptcy

Reuters: The world's largest bitcoin exchange filed for bankruptcy protection in Japan.

Ukrainian ex-leader vows to fight back

BBC: Viktor Yanukovych promised to to fight for Ukraine in his first public appearance since being ousted as president.

Michelle Obama promotes food label overhaul

BBC: The First Lady unveiled plans for new nutrition labels on U.S. food packages.

NASA discovers planets outside of solar system

Forbes: NASA's Kepler mission uncovered 715 new planets circling 305 stars.

Bitcoin on verge of collapse

L.A. Times: The sudden closure of Mt. Gox, the world's largest virtual currency exchange, triggered a massive sell-off.

Toddler obesity rate plummets

BBC: A national study has found the obesity rate among young children has fallen 43% since 2003-2004.