Podcast host Brian Tyler Cohen defended his questioning of Barack Obama on Monday, and said he asked the former president to make a statement to clarify his alien remarks.

Sky News host Caleb Bond has commented on former US president Barack Obama’s comment about aliens after he appeared to suggest they exist in a recent interview.

"But the distances between solar systems are so great that the chances we’ve been visited by aliens is low, and I saw no evidence during my presidency that extraterrestrials have made contact with us....