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Sun Structure
[ Sun Structure ]

·Astronomy: Sun Structure - A HOT HEART
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·Astronomy: Sun Structure - Corona-THE PEARLY CORONA
·Astronomy: Sun Structure
 

 
 
Astronomy & Telescope Astronomy: Around The Earth

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  Around The Earth Around The Earth: Astronomy: Around The Earth - WAVELENGTH WINDOWS

WAVELENGTH WINDOWS

Earth's atmosphere often interferes with the reception of radiation, so once receivers could be positioned beyond the atmosphere, a new era in the study of the universe began.

 
 
  Posted by astronomy on Monday, November 29 @ 01:33:35 CST (9 reads)
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  Around The Earth Around The Earth: Astronomy: Around The Earth - Space-GETTING INTO SPACE

GETTING INTO SPACE

The most direct means of overcoming Earth's gravity and putting a payload, or cargo, into space is to launch it on a rocket. The velocity required is about 17,500 miles per hour (28,000 km/h). The rocket's thrust must be greater than its weight, so even a small cargo uses a lot of fuel.

 
 
  Posted by astronomy on Monday, November 29 @ 01:32:13 CST (9 reads)
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  Around The Earth Around The Earth: Astronomy: Around The Earth - EXPLORE

EXPLORE

Seeking and investigating sources of gamma rays, the most energetic form of radiation, was the objective of COS-B, launched in 1975 by the European Space Agency. The mission ran until 1982. In April 1991, the Compton Gamma Ray Observatory set out to explore further, particularly to identify sources of mysterious gamma-ray bursts.

 
 
  Posted by astronomy on Monday, November 29 @ 01:30:57 CST (8 reads)
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  Around The Earth Around The Earth: Astronomy: Around The Earth - THE BIG PICTURE

THE BIG PICTURE

One of the most significant observations of the twentieth century was made in the early 1990s by the Cosmic Back-ground Explorer. COBE measured the feeble back-ground glow thought to be remnant radiation from the Big Bang—the explosion that created the universe.

 
 
  Posted by astronomy on Monday, November 29 @ 01:29:44 CST (8 reads)
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  Around The Earth Around The Earth: Astronomy: Around The Earth

AROUND THE EARTH

Observing the universe from space became a real possibility on 4 October 1957, when Russia launched Sputnik 1, the first artificial satellite.

 
 
  Posted by astronomy on Monday, November 29 @ 01:28:41 CST (8 reads)
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