Why is the sky blue?

This website was created by David Bonner and is hosted by SMART.

Investigate the following questions...

Why do we see the colors we see?



Electromagnetic Spectrum
(ALL the colors of light..even the nonvisible “colors”)

Try an activity

What's in the atmosphere?


Impact of having an atmosphere

Activity (Why isn't the moon habitable?)

What's the sun shooting at us?
(What IS the sun?


LOTS and LOTS of energy

How much energy reaches us

High Energy Particles/Solar Wind

Neutrinos (“Ghost Particles”)

Other particles that the sun's shooting us with

Recent neutrino research (DONE HERE IN CHICAGO!!)

FermiLab .....neutrinos massless? (ALSO BEING DONE IN CHICAGO!!)

Inquiry a scientist about working as a research assisitant in their lab:

Argonne National Laboratory
Fermi National Accelerator Laboratory

How does the atmosphere interact with the what the sun's shooting at us?

"Courtesy of SOHO/<instrument name>¹ consortium. SOHO is a project of international cooperation between ESA and NASA."

Aurora (Northern Lights) Photo: Jan Curtis (Geophysical Institute, Fairbanks, Alaska)

Cosmic rays' interactions

Earth's Magnetic Shield

Ozone's Absorption

How are we affected by what the sun is shooting at us?

What hits us!??!?!

Are we in danger??

What makes the blue color?


What about sunsets, black nights?...

This is the overall summary of why the sky is the color it is

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