Tree canopy height

Using NASA satellite data, scientists have produced a first-of-its kind map that details the height of the world’s forests. Although there are other local- and regional-scale forest canopy maps, the new map is the first that spans the entire globe based on one uniform method. The work -- based on data collected by NASA's ICESat,… Lire la suite Tree canopy height

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The Dubaï Airshow_from orbit

The Dubai Airshow is the largest aerospace event in the Middle East and the fastest-growing airshow in the world. The GeoEye-1 satellite, which tirelessly photographs the world at half-meter resolution from its constant orbit, swung by the Dubai Airport the other day and took this snap of the Dubai Airshow, in progress this week. Click… Lire la suite The Dubaï Airshow_from orbit

Wireless energy from space

Japan has serious plans to send a solar-panel-equipped satellite into space that could wirelessly beam a gigawatt-strong stream of power down to earth and power nearly 300,000 homes. The satellite will have a surface area of four square kilometers, and transmit power via microwave to a base station on Earth. Putting solar panels in space… Lire la suite Wireless energy from space