Hong Kong Observatory Brand Hong Kong - Asia's world city
GovHK Traditional Chinese Simplified Chinese Search
Search Site Map Contact Us

Home

separator

What's new

separator

Access to information

separator

Public services

separator

Public forms

separator

Electronic services

separator

Tender notices

separator

Links

separator

Print Version

separator

Back

separator

Print Version

What is the colour of sky in
space or on the moon?

Answer: Black, because there is no molecule and therefore no scattered light to brighten the sky.

Sky
(Photo: National Aeronautics and Space Administration)

 

 2003 | Important notices | Privacy policy Last revision date: <15 Jun 2005>