Media tagged with "dark energy"
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The Universe Darkly
Description: A video podcast discussing dark matter and dark energy in the Universe, and how astronomers are using telescopes like Chandra in their search for answers.
Credit: NASA/CXC
Type: Video Podcast and Audio-only track
Keywords: dark energy, dark matter, audio, video, interview
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Energy Distribution of the Universe
Description: Pie chart showing the distribution of energy in the universe by type: dark energy, dark matter, and normal matter. As shown in this illustration, dark energy is estimated to contribute about 75% of the energy in the Universe, dark matter about 21% and normal matter about 4%. Only the normal matter can be directly detected with telescopes.
Credit: NASA/CXC/M.Weiss
Type: Image
Keywords: dark energy, image
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Effects of Dark Energy
Description: This animation shows the expansion history of the Universe by modeling the Universe as a two-dimensional grid of galaxies. The Big Bang, shown as a flash of light, is immediately followed by rapid expansion of the Universe. This expansion then slows down because of the gravitational attraction of the matter in the Universe. As the Universe expands, the repulsive effects of dark energy become important, causing the expansion to accelerate. The size of the deceleration and acceleration has been exaggerated.
Credit: NASA/STScI/G. Bacon
Type: Video
Keywords: dark energy, expanding universe, video
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