Full disscussion about the methods of observational astronomy

Answers

Optical Telescopes

The invention of the optical telescope revolutionised our knowledge of astronomy by making distant objects appear closer and therefore larger.

Radio Telescopes

Radio astronomy was born when a telephone engineer Karl Jansky (1905-1950) was looking for sources of static noise affecting radiotelephone communications.

Infrared Astronomy

Observing in the infrared is limited to only a few wavelength ranges due to absorption by CO2 and water vapour in the Earth's atmosphere.

X-Ray Astronomy

A rocket borne experiment launched in 1962, provided the first direct evidence that some celestial objects are strong X-ray emitters.

Gamma Ray Astronomy

During the cold war, the US military launched a series of satellites called Vela that were designed to ensure compliance with the 1963 nuclear test ban treaty.

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