In many locations, especially in the tropics, La Nina produces the opposite climate impacts to El Nino, which heats up the surface of the oceans
Nasa engineers on Monday pored over new imagery of the space shuttle Endeavour‘s underbelly to decide if its damaged heat shield needed repair, as astronauts prepared for the mission’s second spacewalk. The three-dimensional images of a gouge in the shield were taken on Sunday by a camera, and measured by a laser.