Medicine & TechnologyFelix Baez, a member of the International Contingent Brigade 'Henry Reeve', who was infected with Ebola in Sierra Leone, speaks during a news conference in Havana December 6, 2014.
The smoke trail from the launch of the space shuttle Discovery STS-131 is illuminated by the rising sun at the Kennedy Space Center in Cape Canaveral, Florida April 5, 2010.
A mock soldier's helmet is displayed on the Bosworth Battlefield where it is thought King Richard III lost his life near Market Bosworth, central England February 5, 2013.
Tourists stand on the original Apollo 1 launch pad overlooking the Delta IV Heavy rocket with the Orion spacecraft on Space Launch Complex 37B pad at the Cape Canaveral Air Force Station in Cape Canaveral, Florida December 1, 2014.
The Herbalife logo is seen on a building housing some of their offices in downtown Los Angeles, California April 28, 2013. Herbalife will report their earnings on April 29.
U.S. President Barack Obama speaks next to Ebola response coordinator Ron Klain (L) as he hosts a meeting with his Ebola response team in the Roosevelt Room of the White House in Washington, November 18, 2014.