Just noticed this on a rewatch. The Doctor said it looked different because the Atraxi had just put a shield up around the Earth. I don't believe him.
Also, I'm fairly confident Prisoner Zero is the Big Bad for next season. The dialogue and the last line spoken by Prisoner Zero before being taken by the Atraxi points to this.
Maybe next season we'll see how he/she/it becomes a prisoner. And who they were psychically linked with to generate their form.
Can anyone explain though; how did the Atraxi get into the crack? The eye was on the far side. Admittedly I missed part of the season so I don't fully know how the cracks work.

Also, I'm fairly confident Prisoner Zero is the Big Bad for next season. The dialogue and the last line spoken by Prisoner Zero before being taken by the Atraxi points to this.
Maybe next season we'll see how he/she/it becomes a prisoner. And who they were psychically linked with to generate their form.
Can anyone explain though; how did the Atraxi get into the crack? The eye was on the far side. Admittedly I missed part of the season so I don't fully know how the cracks work.