The collision that spawned the moon was relatively minor. That’s the conclusion of the longest and most detailed computer simulation ever done of the impact.
He was attached to two companions when he fell past them, leaving them trapped on a ledge and unable to help him. All three were saved by an ice screw that held the weight of the experienced mountaineer.
They were climbing Kiwi Gully on Hell’s Lum crag in the Cairngorms when the accident occurred on Sunday afternoon. One of the trapped climbers used his mobile telephone to call for help.