Since the start of the deadly AIDS epidemic in the 1980s, scientists have been working towards a cure.
Mauna Loa is one of two volcanoes within Hawaii Volcanoes National Park.
The American race for president has put immigration to the top of the national conversation.
U.S. President Barack Obama and Chinese President Xi Jinping met this week over international security issues.
Scientists are developing unmanned planes — called drones — that can gather weather information from the atmosphere.
At least 20 people died and hundreds were injured in a bridge collapse in the eastern Indian city of Kolkata Thursday.
Terrorists getting nuclear material to make bombs will be discussed among world leaders at this week’s Nuclear Security Summit in Washington, D.C.
The United States Justice Department says it has found a way to get information from an iPhone used by a shooter in last year’s mass shooting in San Bernardino, California.
Former Cuban dictator Fidel Castro has rejected President Barack Obama’s efforts to improve relations between the two countries.
More than 50 Yazidi women and children were exchanged last week for Islamic State prisoners held by Kurdish forces in Syria.