The Brief

Indiana Gov. Mike Pence Holds Press Conference
Aaron P. Bernstein—Getty Images
Nigerian Presidential Elections

Buhari Wins Nigeria Election

Nigerians voted President Goodluck Jonathan out of power Tuesday in a stunning upset, handing former military dictator Muhammadu Buhari the presidency

Comedy Central Defends Trevor Noah

"To judge him or his comedy based on a handful of jokes is unfair," Comedy Central said of new Daily Show host Trevor Noah, who came under fire for his tweets. "Trevor is a talented comedian with a bright future at Comedy Central"

From left, U.S. Under Secretary for Political Affairs Wendy Sherman, U.S. Secretary of State John Kerry, U.S. Secretary of Energy Ernest Moniz, Robert Malley, member of the U.S. National Security Council, Iranian Deputy Foreign Minister Abbas Araghchi, Head of Iran Atomic Energy Organization Ali Akbar Salehi, Iranian Foreign Minister Javad Zarif and Hossein Fereydoon, special assistant to Iranian president, wait to start a meeting at the Beau Rivage Palace Hotel in Lausanne, Switzerland, March 29, 2015.

Iran Talks Extended

Iran and six world powers will pass the negotiators' self-imposed Tuesday night deadline over its nuclear program by at least a day. After 12 years of negotiations, Iranians feel that a peaceful resolution is at last within grasp, opening up the country to economic progress

A picture shows the logo of the online retailer Amazon dispalyed on computer screens.

Amazon Launches STEM Toy Shop

Amazon on Tuesday introduced a new online store focusing on STEM (Science, Technology, Engineering and Math) toys that help children develop valuable skills in in-demand fields. The top pick on the store’s front page was a child-friendly microscope

Coal plant

White House Plans to Cut Carbon Emissions by up to 28%

The White House reaffirmed a commitment to cut carbon emissions by up to 28% by 2025 in a Tuesday submission to the U.N. that promises new regulations on power plants, new fuel economy standards for some vehicles and rules to address methane emissions

Members of the Guinean Red Cross move the body of a person who died from the Ebola virus on March 8, 2015 at the Donka hospital in Conakry.

Ebola Cases Top 25,000

As of Tuesday, the outbreak, which has persisted for more than a year, has infected 25,178 people and killed 10,445, according to new numbers released by the World Health Organization (WHO)

ice-hockey player

Hockey Helmets May Not Prevent Concussions, Study Shows

Researchers say the sport with the highest rate of concussions suffers from a dearth of effective safety helmets. Price appeared to have no effect on performance, with helmets priced at $100 outperforming helmets at triple the price

Former U.S. Secretary of State Hillary Clinton takes part in a roundtable discussion in Washington, DC, on March 23, 2015.

Hillary Also Used iPad Despite Claims of Single Device

Hillary Clinton emailed her staff on an iPad as well as a BlackBerry while secretary of state, despite her explanation she exclusively used a personal email address on a homebrew server so that she could carry a single device, according to new documents