PITTSBURG, Kans. – Early Sunday morning (Dec. 14), two women were shot during a fight in a Pittsburg neighborhood. Police have arrested this man (pictured above), Walter Alvarez, 23, of Pittsburg.

Prologue -- Big history, the Earth, and the human situation -- [1] Cosmos -- From the Big Bang to Planet Earth -- [2] Earth -- Gifts from the Earth -- A planet with continents and oceans -- A tale of ...

Armageddon -- Ex libro lapidum historia mundi -- Gradualist versus catastrophist -- Iridium -- The search for the impact site -- The crater of doom -- The world after Chicxulub siris_sil_734172 ...