thanks, that’s a great article, I posted the site addy on #13, must learn how to post a live link with copy.
BTW, that image of the salt lake in the crater should be entitled WAHBAH it’s from this image gallery:
http://www.saudicaves.com/gallery2002.html
Index map showing the location of the Wabar meteorite impact site in the Empty Quarter (Ar-Rub' Al-Khali) desert of Saudi Arabia. Harry St. John (Abdullah) Philby reported the visual siting of a huge fireball passing over the then-mud-walled town of Riyadh in 1863, heading in the direction of what we now know to be the Wabar site.