US strike in Afghanistan: What is the 'Mother of All Bombs'?

Kabul (AFP) – The United States has dropped a GBU-43/B Massive Ordnance Air Blast (MOAB) bomb, otherwise known as the ‘Mother of All Bombs’, on an Islamic State stronghold in Afghanistan’s eastern Nangarhar province.
It is the first time the bomb, developed in the early days of the Iraq war, has been used in combat.
– How powerful is the MOAB? –
The 9.8-tonne guided bomb, the largest non-nuclear weapon in America’s arsenal, is described by the US-based