Six-day gathering under the banner of ‘Turning the Tide Together’ brought together more than 20,000 delegates in Washington DC
During International AIDS conference, youth panel discuss when, how to disclose one's HIV status when establishing relationships
Thousands gathered in Washington Monday for the second day of the international gathering
Metro TeenAIDS dedicated to helping young people in prevent the spread of HIV
Timothy Brown received an innovative treatment that battled both HIV and an acute form of cancer
US expresses regret for loss of life among Pakistani troops in US airstrike
NASA's NuSTAR space telescope designed to provide new details about the still-mysterious celestial bodies
NuSTAR is the first telescope to focus high-energy X-rays, is more sensitive than any telescope operated in the region
Next transit of Venus is not until 2117
This is likely last time anyone alive today will have chance to view transit of Venus across Sun
Unmanned ship splashes down in Pacific Ocean at midday (15:42 UTC) making history for private space flight
Astronauts open hatch, float into first private spacecraft to ever reach International Space Station
Commercial SpaceX Dragon spacecraft became first privately-owned vehicle to reach International Space Station (ISS)
SpaceX capsule has successfully performed a series of maneuvers in Earth's orbit
SpaceX successfully launched its Falcon 9 rocket and reusable Dragon space capsule from Cape Canaveral in Florida before dawn Tuesday.
Unmanned rocket heads for ISS on May 19 in feat only previously accomplished by governments
US Secretary of State Hillary Clinton says more needs to be done, but innovation is happening across hemisphere
Attached to Tranquility module is a cupola with six windows around its sides and another in center
Endeavour's crew spent much of day inspecting shuttle's heat-resistant tiles
