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 ¿ìè¶ÌÊÓÆµ
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 ¿ìè¶ÌÊÓÆµ