Astronomy

 

Gravity

1.   Gravitational Force    Nature   Problems  Your Weight on Planets  

2.  Newton's Law of Universal Gravitation 

3.  "g"  Acceleration due to gravity

Moon 

4. Moon Phases  Moon & Earth photos  Moon on a Date    Moon Phases Animated          Month of Moons    Current Moon Phase

5. Tides  Tides Quest


 Lava Flow Hadley

Earth in Space 

6.  Earth's Seasons  

7.  Eclipses   Total Lunar here  May 16 2003    Solar Eclipses in 2003

 Solar Eclipse 1999
 Pathways of totality  Solar Eclipses in your lifetime

Planets 

8.  Our Planets  NASA Planets    Atmospheres Aplet


Kinds of Planets found in the Universe
Gravity.exe shows motions of planets according to mass and distance.  You set the variables. Simple, yet fascinating.Gravity.zip has directions and simulations set to go.  DOWNLOAD
Mercury & Planets

Sun 

9.  Sun's Structure    The Sun as a star

Light 

10.  Light   Light Notes  

11.  Reflection

12.  Refraction

Try a  slide show explaining why light bends.  Refraction.button

Tools 

How Astronomers know anything  How Scientists know about the Universe    Astronomy lectures -college!      Physics 7 - Introduction to Astronomy UCSD

Spectra      Star Spectra   Stellar Spectra             

Telescopes  Telescopes in Space  Explore the Universe -Smithsonian  X-rayChancre

Visit a working telescope - the biggest mainland US at 200 inches - Mt. Palomar Carnegie Institution of Washington builds new observatories

 Computers

Universe 

Star Formation, Life & Death   Stellar Evolution

mass affects star's future
 How mass changes a star's fate - shown in HR diagrams

Galaxies, Black Holes, ...


 View of black hole
Black Hole views		 Sample screen CyberSky
CyberSky-has an old 30-day shareware version. 
 CyberSky has a 21-day version 3 also at its web site .   This personal planetarium is adjustable to various dates, times, & places.  It shows star names, constellations and you set the speed of the heavens!

 Origin of the Universe

 

 

 

 

Ask a NASA Scientist  - welcomes questions about X-ray, gamma-ray, and cosmic-ray
     astrophysics: the objects and processes that produce high energy radiation and particles, and the technology used to detect them.

Ask An Astronaut - forum where you can get your questions answered by astronauts.
     Produced by the National Space Society.

   Links:  Sky & Telescope Magazine - the standard

Sound

Sound Waves Annimation

 

 

Sound