What is Dark Energy? Inside our accelerating, expanding Universe
2024年2月5日 · Nine billion years after the universe began, its expansion started to speed up, driven by an unknown force that scientists have named dark energy. But what exactly is dark energy? The short answer is: We don't know.
Dark energy 'doesn’t exist' so can't be pushing 'lumpy' Universe …
2024年12月19日 · Dark energy is commonly thought to be a weak anti-gravity force which acts independently of matter and makes up around two thirds of the mass-energy density of the Universe. The standard Lambda Cold Dark Matter (ΛCDM) model of the Universe requires dark energy to explain the observed acceleration in the rate at which the cosmos is expanding.
Does Dark Energy Change over Time? | Scientific American
2024年4月12日 · Dark energy may be even more complicated than scientists have bargained for, potentially “evolving” over time rather than remaining relentlessly constant in its acceleration of cosmic...
Dark energy is everywhere in space and expanding our universe - NPR
2024年7月16日 · NASA's Wide Field Infrared Survey Telescope is set to launch in 2027. This innovative telescope is designed to investigate long-standing astronomical mysteries, such as dark energy, the force...
Dark energy is tearing the Universe apart. What if the force
2024年5月3日 · The first set of results from a pioneering cosmic-mapping project hints that the repulsive force known as dark energy has changed over 11 billion years, which would alter ideas about how the...
Dark Energy Could Be Evolving Over Time, Raising Questions …
2024年4月8日 · Dark energy is causing the universe to expand more rapidly over time—and it is considered a constant in the leading model of cosmology. While the researchers need to gather more data to make...
What is dark energy? | Space
2022年11月24日 · Dark energy is a hypothetical form of energy that is proposed by physicists to explain why the universe is not just expanding but is doing so at an accelerating rate. Think of dark energy as...
Unraveling Dark Energy and Cosmic Expansion With an 11-Ton Time …
2024年4月13日 · The Dark Energy Spectroscopic Instrument (DESI), mounted on a telescope in Arizona, has created the largest 3-D map of the cosmos, mapping over 30 million galaxies and 3 million quasars. This monumental task, a collaboration of over 900 researchers, helps us understand the universe’s expansion and the role of dark energy.
Dark energy: Staring into darkness | Nature
2016年9月28日 · Dark energy is the name physicists use for whatever substance, force or property of space is messing with the Universe, making its expansion accelerate. As yet, we know almost nothing about it,...
Study: Early dark energy could resolve cosmology’s two ... - MIT …
2024年9月13日 · Early dark energy could have triggered the formation of numerous bright galaxies, very early in the universe, a new study finds. The mysterious unknown force could have caused early seeds of galaxies (depicted at left) to sprout many more bright galaxies (at right) than theory predicts.