LifeMaya astronomical tables found daubed on wall For the first time archaeologists have found astronomical writings dating from the height of the Maya civilisation in the 9th century 51¶¯Âþ
SpaceFight over changing constants reaches stalemate What was supposed to be a superweapon in the battle to find out whether nature's fundamental constants vary has turned out to be a damp squib 51¶¯Âþ