The best photos of the week: From a suspended grand piano to sunken ships

- 4.5 billion years ago: Mars-sized object smashes into the newly-formed Earth, creating debris that coalesces to form the Moon

- 66 million years ago: 10km-wide asteroid crashes into the Gulf of Mexico, wiping out over 70 per cent of living species – including the dinosaurs.

- 50,000 years ago: 50m-wide iron meteor crashes in Arizona with the violence of 10 megatonne hydrogen bomb, creating the famous 1.2km-wide Barringer Crater

- 1490: Meteor storm over Shansi Province, north-east China when large stones “fell like rain”, reportedly leading to thousands of deaths.  

- 1908: 100-metre meteor from the Taurid Complex explodes near the Tunguska river in Siberia with the force of 1,000 Hiroshima-type bombs, devastating 2,000 square kilometres of forest.

- 1998: Comet Shoemaker-Levy 9 breaks apart and crashes into Jupiter in series of impacts that would have annihilated life on Earth.

-2013: 10,000-tonne meteor burns up over the southern Urals region of Russia, releasing a pressure blast and flash that left over 1600 people injured.

Armies of Sand

By Kenneth Pollack (Oxford University Press)
 

What are the awards? They honour anyone who has made a contribution to life in Abu Dhabi.

Are they open to only Emiratis? The awards are open to anyone, regardless of age or nationality, living anywhere in the world.

When do nominations close? The process concludes on December 31.

How do I nominate someone? Through the website.

When is the ceremony? The awards event will take place early next year.