Illustrated with 180 photographs, Chernobyl offers an original photographic exploration of the world’s worst nuclear disaster.
As Reactor No. 4 melted down, its core expanded uncontrollably till, through its fissured casing, radioactive particles erupted into the sky.
A bit of a strange description of what was basically a steam explosion (which caused the reactor vessel lid to do an impersonation of a flipped coin) followed by a fire in the exposed core which created a plume past the displaced lid. I hope the other descriptions in the book are more technically correct and less Tabloid Headline in style.
Regards,
M
Haha, very good point! 
We live in a world of sound bites and click bait, technical stuff is sooo boring…