Blue Marble image of Earth (2005)
Blue Marble image of Earth. Composite satellite image of Earth's western hemisphere, centred on the Atlantic Ocean. North is at top. The image is one of a set entitled Blue Marble: Next Generation, released in October 2005, which improves upon Blue Marble 2000. The new images combine data collected over a longer period of time at an improved resolution of 500 metres per pixel. Features include cloud cover, oceans, phytoplankton activity, topography, and city lights in the nighttime part of the hemisphere. Data was obtained mainly by NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra and Aqua satellites between July 2001 and July 2004. Topography is based on radar data collected by the Space Shuttle Endeavor.
© Nasa Earth Observatory/Science Photo Library
17th Century nautical map of the Atlantic
17th Century nautical map of the Atlantic Ocean. Historical portolan chart showing the Atlantic Ocean and adjacent continents. Portolan charts are navigational maps based on realistic descriptions of harbours and coasts. Along with the Atlantic, this chart shows the southeast Pacific Ocean, southwest Indian Ocean and the continents of South America, Africa, Europe, and parts of North America and Asia. Created by Pascal Roiz in 1633.
© LIBRARY OF CONGRESS/SCIENCE PHOTO LIBRARY
Scotland, UK, satellite image
Scotland, UK. North is at top. Natural colour satellite image showing Scotland in the United Kingdom, with the surrounding territories shaded out. The UK consists of the island of Great Britain and Northern Ireland - the north-eastern part of the island of Ireland (bottom left). Together these islands constitute the British Isles. Great Britain itself consists of Scotland (green), England (bottom right), and Wales (not seen). The Atlantic Ocean (blue, upper left), Irish Sea (blue, bottom centre), North Sea (blue, right) and Celtic Sea (not shown) surround the British Isles. Image compiled from data acquired by the LANDSAT 5 and 7 satellites, in 2000. Images highlighting all other regions of this country are available. For further information please
© PLANETOBSERVER/SCIENCE PHOTO LIBRARY