The Landsat satellites have been monitoring the Earth since 1972. Tens of billions of sq. kilometers of the Earth have been coated by Landsat sensors and this imagery has provided practical info to scientists from many various Earth science disciplines.

This 3-D view of the Alcedo Volcano on Isabela, one of many Galápagos Islands, was created by overlaying topographic information with SIR-C/X-SAR radar imagery. On this picture the radar data helps to delineate totally different volcanic features. The rougher textured lava flows appear as bright options, whereas smoother ash deposits and lava flows appear darker.

Beijing was established as a metropolis in 1045 B.C. King Wu was the first to declare town as a capital in 1057 B.C. It was Kublai Khan who established the Forbidden City in 1260 A.D. It nonetheless stands as Beijing’s city middle. In 1421 the Chinese took the city back and gave it its current name of Beijing. Having served because the capital of the Liao, Jin, Yuan, Ming and Qing Dynasties, this contemporary metropolis is now the capital of the Individuals’s Republic of China.

The newest in this sequence of distant sensing satellites is Landsat 7. Launched on 15 April 1999, Landsat 7 has … Read the rest