News & Updates

17 March 2014
Tracking HET’s Progress

7 October 2013
VIRUS Units Come Together

9 September 2013
Last Look at Sky Before Upgrade

10 May 2013
Mirror Coating Smooths the Way for HET Upgrade

 Dark energy is not only terribly important for astronomy, it's the central problem for physics. It's been the bone in our throat for a long time.”

Steven Weinberg
Nobel Laureate
University of Texas at Austin

 

 

Video

A video introduction to dark energy, narrated by StarDate's Sandy Wood - Play video

Glossary

Light-year

A unit of length used by astronomers to measure great cosmic distances. One light-year is equal to the distance light travels in one year, which is about 5.88 trillion miles or almost 800 times the diameter of our solar system. The nearest star is a mere four light-years away, while the nearest large galaxy lies about 2.5 million light-years from Earth. Astronomers also use another unit, the parsec, which is equivalent to 3.26 light-years.

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