News & Updates

5 November 2015
Upgraded Hobby-Eberly Telescope Sees First Light

28 June 2015
Sophisticated set of mirrors will sharpen, widen HET’s view of the sky

31 March 2015
Engineers install, test cryogenic system

17 March 2014
Tracking HET’s Progress

 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




H.E.T. PFIP Removal - Play video


Vacuum energy

A possible explanation for dark energy. First proposed by Albert Einstein to bring his equations into balance with the then-observed universe, it proposes that space itself produces a form of energy, known as the cosmological constant, that causes the universe to accelerate faster as it ages. Current models show that the observed dark energy is far too weak to be accounted for by theories of the cosmological constant.

Media Gallery

Harold C. Simmons Dark Energy Optical System (mock-up)

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