This 8-minute video posted at Norway's NRK is quite a bit more detailed than the one-minute version being shown on most news channels. (audio in Norwegian, with subtitles)
Although Helstrup is still not completely convinced that it was indeed a meteorite that flew past him, the experts are in no doubt.Addendum: A tip of the hat to reader Adrian Morgan for finding extended commentary on the incident at Bad Astronomy.
“It can’t be anything else. The shape is typical of meteorites – a fresh fracture surface on one side, while the other side is rounded,” said geologist Hans Amundsen. He explained that the meteorite had been part of a larger stone that had exploded perhaps 20 kilometres above Helstrup.
Amundsen thinks he can make out coloured patches in the stone, and believes that in that case it may be a breccia – a common type of meteorite rock.