知识世界

Astronomy:How the Sky Works

To the earlist observers， the cosmos was the realm of the gods. They controlled day and night， the passage of the sun and moon， so do the constellations and those wandering stars we know today as planets. Great monuments honor the gods， but such monuments have practical function. They were the first observatories， marking the rising and setting of the sun， the moon and stars.

• 01

  Astronomy： Threat from Space

  
• 02

  Astronomy： Galileo and the Milky Way

  
• 03

  Astronomy： Spacefiles — Lord of the Rings

  
• 04

  Astronomy： Spacefiles — Venus

  
• 05

  Astronomy： Spacefiles — Sun

  
• 06

  Astronomy： The Story of Aviation

  
• 07

  Astronomy： Spacefiles — Galaxy

  
• 08

  Astronomy： History of the Race to the Moon

  
• 09

  Astronomy： Deep Impact

  
• 10

  Astronomy： Edwin Powell Hubble and the Expanding Universe