Investigating the Universe

Exploration One: The Vast Universe

First Thoughts: Looking at a Tiny Piece of the Sky

Activity 2: Sorting Through Galaxies

Exploration Two: Measuring Distances in the Universe

Activity 3: Measuring Parallax of Stars in Images

     Parallax

Exploration Three: Measuring Distances with Standard Candles

First Thoughts: Estimating Distance by Comparing Brightness

Activity 3: Measuring Distance Using Cepheids

     Cepheid

Activity 4: Measuring Cosmological Distances Using Type la Supernova

     Type la Supernova

Exploration Four: Measuring the Age of the Universe

Activity 3: Measuring Redshift of Spectra from Galaxies

     Redshift

Challenge: Measuring the Size and Age of the Universe

     Investigating the Universe Challenge Area of the Data Center