SpaceGrand canyons formed on moon in minutes after colossal asteroid strike Two canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that followed the initial one ¿ìè¶ÌÊÓÆµ
LifeSalamanders fill their toes with blood before each step Wandering salamanders pump their toes full of blood before lifting their feet, a trick that may help them release their sticky grip while conserving energy ¿ìè¶ÌÊÓÆµ