Video A video introduction to dark energy, narrated by StarDate's Sandy Wood - Play video |
GlossaryVacuum 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
Find more images, video, and podcasts in the gallery. |
Feedback | Credits | Donate | UT Department of Astronomy| Texas Cosmology Center| HETDEX on YouTube
 |
|
|
|
|
|
 |
 |
 |
Copyright ©2008-2012 McDonald Observatory. HETDEX is a collaboration of The University of Texas at Austin, Pennsylvania State University, Texas A&M University, Universitats-Sternwärte Munich, Astrophysical Institute Potsdam, and Max-Planck-Institut fuer Extraterrestrische Physik. Financial support is provided by the State of Texas, the United States Air Force, the National Science Foundation and the generous contributions of many private foundations and individuals.
