UK London -- c.1910 -- Sir Ernest Shackleton in a merchant navy captains uniform. Shackleton led a famous expedition in which he lost his ship - the Endeavour - in an expedition to the South Pole, though famously rescued the entire party after an epic journey over the southern ice to safety in South Georgia with two other explorers -- Picture by George Bain | Lightroom Photos
Planet Earth view from space seen viewed 1972 famous image Apollo 17 mission to the moon outer NASA Africa African continent Antarctic Antarctica south pole southern polar region ice cap continents poles caps regions Red Sea Mediterranean Indian Ocean oceans sea Asia Asian land mass masses landmass lunar landing landings missions astronauts December planets water nobody project projects coast coastline coastlines cloud clouds cloudy natural world science and technology solar system exploration explorers explorer exploring Arabian Peninsula celestial body bodies Madagascar
Famous NASA photo of Earth taken in 1972 by the crew of Apollo 17 as they headed for the moon. The image was captured on December 7 after the command module aligned with the Earth and Sun, allowing the crew to photograph the Earth in full light. The photo was taken around 18,000 miles away from the planet and the continent of Africa and the island of Madagascar are clearly visible beneath the swirling clouds. Also visible at the bottom is the Antarctic continent - this was the first time an Apollo trajectory made it possible to photograph the southern polar ice cap. The Mediterranean Sea can be seen at the very top of the image and also visible, among other things, are the Red Sea and the Arabian Peninsula.
EARTH Arctic Ocean -- 16 Jun 2001 -- For many years, scientists have expected that climate change will be more rapid and dramatic at the poles than at lower latitudes, an expectation that has been demonstrated both with climate models and recent observations of snow and ice, surface temperatures, vegetation, and permafrost. The major reason for this polar amplification of climate change is because snow and ice aren?t just the result of a cold climate, they also help create it. The path by which snow and ice influence the climate is obvious in this detailed, photo-like image of Arctic sea ice, captured on June 16, 2001, by NASA?s Landsat-7 satellite. Sea ice is spread across the nearly black backdrop of the Arctic Ocean in a broken mosaic. Large blocks of ice swirl against finely crushed ice that looks almost like foam. The dark ocean surfaces absorb incoming sunlight, while sea ice reflects it. A cooling climate increases snow and ice, which increases solar reflection, leading to more cooling. Warming climates cause snow and ice to melt, which increases solar absorption, leading to more warming. Steady declines in Arctic sea ice over previous decades?and especially rapid declines since around 2000?caused Seiji Kato, an atmospheric scientist affiliated with NASA?s Langley Research Center through Hampton University, to wonder whether the recent losses were already dramatic enough to have changed the percent of incoming sunlight the Earth reflects back to space. This planetary ?vital sign?