Educated Earth // Videos - Astronomy - Why is the Sky Dark at Night?
User:
Pass:
Remember Me
Forgot Pass Register

Our educational work is entirely supported by people like you. Your donations directly add new exhibits and new features to the website, and even helps us open the Prehistoria Natural History Center!




eXTReMe Tracker

Videos / Astronomy / Why is the Sky Dark at Night?







Why is the Sky Dark at Night?

Why is the Sky Dark at Night?
There is enough luminous matter in the universe to light up the entire sky, even brighter than the surface of the sun, but at night the sky darkens. Why is the night sky dark?

Olbers' paradox states that at any angle from the Earth the sight line will end at the surface of a star, so the night sky should be completely white.. This film explains the critical flaw in this thinking.

  • Currently 2.81/5
  • 1
  • 2
  • 3
  • 4
  • 5
Rating: 2.8 / 5 (662 votes)
Posted by nova on April 30, 2011
Hits: 3150

More Videos

Storm Turns Sewers Into Geysers
Storm Turns Sewers Into Geysers
Type: Earth Sciences
Beating Heart Cell
Beating Heart Cell
Type: Biology & Medicine
Modern Conflict Minerals
Modern Conflict Minerals
Type: Making A Difference
The Mud Skipper
The Mud Skipper
Type: Life on Earth
Final Landing Of The Space Shuttle Program
Final Landing Of The Space Shuttle Program
Type: Astronomy
Tortoises in Trouble
Tortoises in Trouble
Type: Life On Earth
Instant Hot Ice Using Sodium Acetate
Instant Hot Ice Using Sodium Acetate
Type: Physics & Chemistry
Hyenas vs Male Lion
Hyenas vs Male Lion
Type: Life on Earth
*LIVE FEED* NASA Television
*LIVE FEED* NASA Television
Type: Live Feeds
Simulations Of Galaxy Collisions
Simulations Of Galaxy Collisions
Type: Astronomy
The Four Ways Sound Affects Us
The Four Ways Sound Affects Us
Type: Biology & Medicine
Period Table: Crash Course
Period Table: Crash Course
Type: Earth Sciences
The Russian T-34
The Russian T-34
Type: War
Water Balloon In Slow-Motion
Water Balloon In Slow-Motion
Type: Physics & Chemistry
Chimp Plays Pacman
Chimp Plays Pacman
Type: Life on Earth

Comments

There are no comments on this item.
User: Pass: Remember Me

To comment on this item, please login or register.


Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively in Unknown on line 0