Buzz Aldrin's Toy Story joke flies over Trump's head

US President Donald Trump has signed an order reviving the National Space Council, but the ceremony has delighted and confused space aficionados in equal measures.

The council's job is to coordinate the United States' space exploration activities. Its first incarnation lasted from 1958 until 1973, and oversaw the moon landings.

Second man on the moon Buzz Aldrin was present at the ceremony, which wasn't without its awkward moments.

"We know what this is, space. That's all it has to say - space," Mr Trump said as he signed the order, before turning to Mr Aldrin and asking, "There's a lot of room out there, right?"

Mr Aldrin replied with a quote made famous by Buzz Lightyear, a character from the animated classic film Toy Story: "Infinity and beyond!"

While the rest of the room laughed, the joke appears to have gone right over the President's head.

"This is infinity here. It could be infinity. We don't really don't know," he mused out loud.

"But it could be. It has to be something, but it could be infinity, right?

Earlier, Mr Trump spoke of the importance of the space programme to the security of the United States, to which Mr Aldrin gave a quizzical look before raising his eyebrows.

The order puts Vice President Mike Pence in charge of the reformed National Space Council. In 2005, Mr Pence led a charge to cancel NASA's space exploration plans to save money. The push failed.

Mr Trump also thanked three of the astronauts present at the ceremony - Mr Aldrin, Alvin Drew and David Wolf - but seemingly forgot to mention the only female astronaut present, Sandy Magnus. Ms Magnus later said it was probably because she wasn't in NASA uniform, instead there as a representative of the American Institute of Aeronautics and Astronautics.

No one from NASA headquarters was present. Earlier this week, the space agency was forced to clarify it did not have a child sex slave colony on Mars, as was claimed on a radio show hosted by one of Mr Trump's favourite broadcasters, Alex Jones.