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The Dark Energy Survey (DES) is an astronomical survey designed to constrain the properties of dark energy. It uses images taken in the near- ultraviolet , visible , and near- infrared to measure the expansion of the universe using Type Ia supernovae , baryon acoustic oscillations , the number of galaxy clusters , and weak gravitational lensing ...
Pie chart showing the fractions of energy in the universe contributed by different sources. Ordinary matter is divided into luminous matter (the stars and luminous gases and 0.005% radiation) and nonluminous matter (intergalactic gas and about 0.1% neutrinos and 0.04% supermassive black holes).
Under this scenario, dark energy would ultimately tear apart all gravitationally bound structures, including galaxies and solar systems, and eventually overcome the electrical and nuclear forces to tear apart atoms themselves, ending the universe in a "Big Rip". On the other hand, dark energy might dissipate with time or even become attractive.
The fraction of the total energy density of our (flat or almost flat) universe that is dark energy, , is estimated to be 0.669 ± 0.038 based on the 2018 Dark Energy Survey results using Type Ia supernovae [7] or 0.6847 ± 0.0073 based on the 2018 release of Planck satellite data, or more than 68.3% (2018 estimate) of the mass–energy density ...
Determine the high-energy behavior of gamma-ray bursts and transients. Probe dark matter (e.g. by looking for an excess of gamma rays from the center of the Milky Way) and early Universe. Search for evaporating primordial micro black holes from their presumed gamma burst signatures (Hawking Radiation component).
Therefore, the NASA pictures are legally in the public domain. Photographs and other NASA images should include the NASA image number if you have it, for easy reference. When accessing space photographs, be sure that you know the source. Pictures not produced by NASA employees may have different usage restrictions.
Recent research has shown that electron-electron (Bremsstrahlung) [13] leads first to an enrichment of high-energy electrons and subsequently enlarges the number of high-energy photons. Some of standard theoretical frameworks have been borrowed from other lightning-associated discharges like sprites, blue jets, and elves , which were discovered ...
Based on the 2013 data, the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. On 5 February 2015, new data was released by the Planck mission, according to which the age of the universe is 13.799 ± 0.021 billion years old and the Hubble constant was measured to be 67.74 ± 0.46 (km/s)/Mpc .