Dark energy
Dark energy is a proposed form of energy that affects the universe on the largest scales. Its primary effect is to drive the accelerating expansion of the ...
Dark Matter & Dark Energy - NASA Science
Overview Everything scientists can observe in the universe, from people to planets, is made of matter. Matter is defined as any substance that has mass and ...
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What is Dark Energy? Inside our accelerating, expanding Universe
Nine billion years after the universe began, its expansion started to speed up, driven by an unknown force that scientists have named dark energy.
What is dark energy? - Space.com
Think of dark energy as the "evil counterpart" to gravity–an "anti-gravity" force providing a negative pressure that fills the universe and ...
Dark energy, explained - UChicago News - The University of Chicago
“Dark energy” is a term scientists use to refer to whatever is causing the universe to expand faster over time.
National Science Foundation Office of Science - U.S. Department of Energy Science & Technology Ministerio de Educación FINEP. © 2024 The Dark Energy Survey.
Understanding Dark Energy | Rubin Observatory
It posits two mysterious new components: dark matter and dark energy, which are thought to comprise 96% of the combined total of mass and energy in the ...
Dark Energy and Dark Matter | Center for Astrophysics - Harvard CfA
All the atoms and light in the universe together make up less than five percent of the total contents of the cosmos. The rest is composed of dark matter and ...
Dark energy | Definition, Discoverers, & Facts | Britannica
In cosmological theory, dark energy is a general class of components in the stress-energy tensor of the field equations in Einstein's theory of ...
DOE Explains...Cosmic Acceleration and Dark Energy
The universe has experienced two distinct periods of cosmic acceleration. The first, called inflation, occurred a fraction of a second after the Big Bang. The ...
Overview ... The Dark Energy Survey (DES) is an international, collaborative effort to map hundreds of millions of galaxies, detect thousands of supernovae, and ...
Discovering Dark Energy | HubbleSite
The evidence was based primarily on the faintness of distant supernovas compared to their expected brightness in a universe decelerating under gravity. The ...
Dark Energy | Fermilab Cosmic Physics Center
“Dark Energy” refers to a mysterious effect in the largest, emptiest stretches of the cosmos, that causes the expansion of the universe to accelerate.
Science 101: Dark Matter and Dark Energy
The universe is predominantly composed of dark energy and dark matter. Visible matter (everything we can see, including stars and planets) only makes up around ...
Invisible dark matter makes up most of the universe – but we can only detect it from its gravitational effects.
What is dark energy? - ESA Science & Technology
What is dark energy? Dark energy is an unidentified component of the Universe that is thought to be present in such a large quantity that it ...
The universe is expanding, and that expansion stretches light traveling through space in a phenomenon known as cosmological redshift.
Study: Early dark energy could resolve cosmology's two ... - MIT News
MIT physicists propose that a mysterious force known as early dark energy could solve two of the biggest puzzles in cosmology and fill in ...
Dark Energy. Dark energy is the name given to the unknown energy source that is causing our Universe's expansion to accelerate. Our Universe is expanding. One ...