communications satellite

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The satellite's solar panels are arrays of solar cells that provide the electrical energy needed for its functions, the power being stored in batteries. Its antennas may be 8 ft (2.5 m) in diameter and may transmit wide-area-of-coverage beams or narrowly focused “spot” beams.

Space shuttle Endeavour astronauts capturing the 4.5-ton Intelsat VI, a communications satellite stranded in an unusable orbit, in order to repair it, 1992.

NASA launch of Early Bird, or Intelsat I

Early Bird, or Intelsat I

Molniya 1L, a television communications satellite launched April 11, 1969.

Replicas of the synchronous communications satellites that allowed the 1968 Olympic Games to be televised in Europe and Japan.

Discover

Aurochs. Bos primigenius. Skeleton. Extinct animal. Skeleton of an Aurochs, an extinct wild ox.

6 Animals We Ate Into Extinction

Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.

What Is the Emoluments Clause?

Drinking water is poured into a glass.

Water Fluoridation: Just the Facts

Portrait of a mountain gorilla at a short distance. gorilla close up portrait.The mountain gorilla (Gorilla beringei beringei)

Falling Stars: 10 of the Most Famous Endangered Species

Gutzon Borglum. Presidents. Sculpture. National park. George Washington. Thomas Jefferson. Theodore Roosevelt. Abraham Lincoln. Mount Rushmore National Memorial, South Dakota.

9 Memorials and Monuments in the United States

Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

Ten Days That Vanished: The Switch to the Gregorian Calendar

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

communications satellite: Related Content

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Photos

The satellite's solar panels are arrays of solar cells that provide the electrical energy needed for its functions, the power being stored in batteries. Its antennas may be 8 ft (2.5 m) in diameter and may transmit wide-area-of-coverage beams or narrowly focused “spot” beams.

Space shuttle Endeavour astronauts capturing the 4.5-ton Intelsat VI, a communications satellite stranded in an unusable orbit, in order to repair it, 1992.

NASA launch of Early Bird, or Intelsat I

Early Bird, or Intelsat I

Molniya 1L, a television communications satellite launched April 11, 1969.

Replicas of the synchronous communications satellites that allowed the 1968 Olympic Games to be televised in Europe and Japan.

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Topics

Telstar Syncom 2 Westar Syncom 3 satellite communication Earth satellite solar wind power satellite Sputnik Kosmos satellite radio Science and Technology Satellite Landsat Kwangmyŏngsŏng Vela Discoverer Midas

Key People

Harold Rosen

American engineer

Pierce, John Robinson

John Robinson Pierce

American scientist

William P. Lear

American engineer and industrialist

Quiz

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

All About Astronomy

Armed Forces Radio Services broadcaster Jack Brown interviews Humphrey Bogart and Lauren Bacall for broadcast to troops overseas during World War II.

Communications Firsts Quiz