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

H.E.T. PFIP Removal - Play video

Glossary

Expanding universe

The universe is expanding as a result of the Big Bang. The rate of expansion has varied. Evidence shows that until about five billion years ago, the expansion was accelerating but at a slowly decreasing rate. Since then, the acceleration has increased, perhaps as a result of dark energy.

Media Gallery


What is the Universe Made Of?

Find more images, video, and podcasts in the gallery.