1. President Obama to host concussions summit
President Obama tackles the topic of youth sports safety and concussions on Thursday as he hosts the first White House summit on the issue. He and other experts discuss how to identify, treat and prevent concussions in young athletes.
2. National Spelling Bee finals
After two preliminary rounds of on-stage spelling Wednesday that was by turns heart-wrenching, amusing and inspiring, 46 contestants made it through to the semifinals of the Scripps National Spelling Bee. ESPN will broadcast the finals live starting at 8 p.m. ET Thursday.
3. Aurora shooting suspect back in the courtroom
Mass murder suspect James Holmes is back in a Colorado courtroom on Thursday for a hearing on how to pick a jury for the high-profile case. He is charged with the 2012 shootings at a movie theater in Aurora that killed 12 people.
5. Search for MH370 jet rules out hunt area
An Australian agency says investigators have concluded that the missing Malaysian jet is not within an area thought to be its most likely resting place after an unmanned submersible found no sign of the plane.
And, the essentials:
Weather: More rain and thunderstorms will pelt the Southeast and the Rockies while unusually cool weather will envelop the Northeast.
Stocks: U.S. markets are pointing higher in futures trading.