Factual error: Looking at a nuclear explosion that close will burn your retinas irreparably. One can be blind 30 miles away, just by seeing the flash. The little girl at the start is looking directly at the explosion when it hits, and continues to watch.
Lost/Found - S1-E1
Factual error: A mechanic is outside the ship repairing the shields. A fire starts, and the fire burns just as it would in an atmosphere. Impossible in the vacuum of space.
Episode #1.6 - S1-E6
Factual error: Mike, a CIA employee in the UK, is driving a black left-side drive SUV. However, US government employees in the UK performing official duties drive right-hand drive vehicles because UK law requires driving on the left, meaning the steering wheel must be on the right side of the car for safety and aligning with local traffic rules and vehicle configurations. (00:32:49)
Suggested correction: There is no law saying all vehicles have to be right-hand drive on British roads - if this was the case all vehicles from mainland Europe would be forbidden on UK roads (they are all left-hand drive as they drive on the right on the continent). The US government would likely prefer to use right-hand drive cars for safety reasons though.
Episode #1.5 - S1-E5
Factual error: A VHS of the movie Indecent Proposal can be seen on the shelf in Dexter's bedroom. This episode takes place on 15 July 1992, but Indecent Proposal didn't release until 1993. (00:11:06)
Factual error: When Gio is driving Deb and she is about to dial the car phone, they drive past a fleet of rental shared Citi Bikes. Shared bikes wouldn't be a thing until the late 90s, and Citi Bike itself only began in 2013. (00:42:20)
Factual error: Originally described as a subaltern (the correct equivalent rank to lieutenant in the ATS), Sandra Wesgate is later promoted to captain, which is incorrect as the ATS equivalent was junior commander.
Factual error: Abby gets out of the train via the driver's door. You see a front view of the train. The number on the train is 321434. This train runs on overhead lines, and it is being shown as a Gatwick Express train from Gatwick Airport to Victoria. The railway from Gatwick to Victoria has a third rail conductor, so this Class 321 train would not have been able to move. (00:50:02)
Factual error: Barbara shoots her revolver at the guys chasing them. When she stops and gets out of the car, she opens the cylinder and we see she only has 1 round left. However, the other chambers should still have the empty casings in them instead of being empty.
Episode #1.6 - S1-E6
Factual error: In Episode 6, Vincent comes out of his apartment building and before he reaches the curb, and has a chance to hail a cab, one is waiting for him. There was no ability to book a yellow cab in the 1980s.
Factual error: Jo is re-entering the atmosphere. There is very hot plasma shown outside, typical of reentry. While this plasma is occurring, there is a communications blackout. Yet Jo seems to be able to communicate with Roscosmos control in spite of that.