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2. Very low Earth orbit - Wikipedia

   en.wikipedia.org/wiki/Very_low_Earth_orbit

   Very low Earth orbit. Very low Earth orbit is a range of orbital altitudes below 400 km (250 mi), and is of increasing commercial importance in a variety of scenarios and for multiple applications, in both private and government satellite operations. Applications include earth observation, radar, infrared, weather, telecommunications, and rural ...

3. Earth observation satellites transmission frequencies - Wikipedia

   en.wikipedia.org/wiki/Earth_observation...

   ERS-2 (High rate) 8140 MHz. 8025-8175 MHz. Earth exploration-satellite service. SPOT 4,5. 8253 MHz. 8215-8400 MHz. Earth exploration-satellite service.

4. Satellite internet constellation - Wikipedia

   en.wikipedia.org/wiki/Satellite_internet...

   A satellite internet constellation is a constellation of artificial satellites providing satellite internet service. In particular, the term has come to refer to a new generation of very large constellations (sometimes referred to as megaconstellations [1]) orbiting in low Earth orbit (LEO) to provide low-latency, high bandwidth ( broadband ...

5. Bing Maps Platform - Wikipedia

   en.wikipedia.org/wiki/Bing_Maps_Platform

   Bing Maps Platform (previously Microsoft Virtual Earth) is a geospatial mapping platform produced by Microsoft. It allows developers to create applications that layer location-relevant data on top of licensed map imagery. The imagery includes samples taken by satellite sensors, aerial cameras (including 45 degree oblique "bird's eye" aerial ...

6. SkySat - Wikipedia

   en.wikipedia.org/wiki/SkySat

   SkySat is a constellation of sub-meter resolution Earth observation satellites owned by Planet Labs, providing imagery, high-definition video and analytics services. Planet acquired the satellites with their purchase of Terra Bella (formerly Skybox Imaging), a Mountain View, California-based company founded in 2009 by Dan Berkenstock, Julian Mann, John Fenwick, and Ching-Yu Hu, from Google in ...

7. List of natural satellites - Wikipedia

   en.wikipedia.org/wiki/List_of_natural_satellites

   Among them is Ganymede, the largest and most massive moon in the Solar System. Its 87 known irregular moons are organized into two categories: prograde and retrograde. The prograde satellites consist of the Himalia group and three others in groups of one. The retrograde moons are grouped into the Carme, Ananke and Pasiphae groups.

8. Reconnaissance satellite - Wikipedia

   en.wikipedia.org/wiki/Reconnaissance_satellite

   A reconnaissance satellite or intelligence satellite (commonly, although unofficially, referred to as a spy satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications. The first generation type (i.e., Corona [1] [2] and Zenit) took photographs, then ejected canisters of ...

9. Greenhouse effect - Wikipedia

   en.wikipedia.org/wiki/Greenhouse_effect

   Greenhouse effect. Energy flows down from the sun and up from the Earth and its atmosphere. When greenhouse gases absorb radiation emitted by Earth's surface, they prevent that radiation from escaping into space, causing surface temperatures to rise by about 33 °C (59 °F). The greenhouse effect occurs when greenhouse gases in a planet's ...