'They're real' - former U.S. President Obama on aliens

Leonardo DiCaprio says Jho Low planned to donate to Obama's 2012 campaign

Obama takes aim at Trump in fiery eulogy for Civil Rights icon John Lewis

'Moral call to rest of the world' on climate from hardest hit countries, Obama says

Obama among former US officials targeted in 'act of terror'

Why did Obama cancel his meeting with the Philippines' Duterte?

Decades after Vietnam War, Laos grapples with unexploded bombs

Duterte says Obama must listen to him first on human rights