'Dementia': Trump buried in mockery for baffling tweet claiming the moon 'is a part' of Mars

President Donald Trump on Friday sent out a scientifically illiterate tweet in which he scolded NASA for any plans it might have for going to the moon -- and then bizarrely claimed that the moon was "part" of the planet Mars.

"For all of the money we are spending, NASA should NOT be talking about going to the Moon - We did that 50 years ago," the president wrote. "They should be focused on the much bigger things we are doing, including Mars (of which the Moon is a part), Defense and Science!"

The president's tweet quickly drew ridicule from across the web, as well as bafflement from followers who had no idea what, if anything, the president was trying to communicate.

Check out some of the reactions below.