The former president on why those waiting for Trump to disclose the existence of aliens are sure to be disappointed, and insisting first contact "hasn't happened yet."

Late-night talk show host Stephen Colbert interviewed former President Barack Obama on The Late Show with Stephen Colbert on Tuesday night. It was a prerecorded interview that took place at the yet-to-open Obama Presidential Center in Chicago,

Former President Barack Obama says he would make a good candidate to make first contact on behalf of Earth.

Barack Obama dismissed alien cover-up conspiracy theories, telling Stephen Colbert the government is terrible at keeping secrets about UFOs.

President Donald Trump keeps repeatedly promising a big UFO disclosure. Former President Barack Obama says it's not going to happen. Back in mid-April,

The former president was critical of President Trump, without ever naming him. Mr. Obama also urged Democrats to be plain-spoken, and talked about aliens.