Dark MatterDark EnergyGravityFourth Space DimensionThis paper explains how a model of the universe can be constructed by incorporating time and space into geometry in a unique way to produce a 4-space dimension/1-time dimension model. The model can then show how dark matter can be the gravity...
“And then the idea was born that the Universe is filled for the most part not with ordinary matter, but with some “dark energy,” which has special properties. No one knows what is it and how it works, so it named “Dark Energy” as something unknown. And 70% of the Universe cons...
Dark matter and dark energy: Most of the "stuff" in the universe isn't conventional matter or energy, as we've always conceived it: it's actually "dark matter" and "dark energy." This NASA website explains what these things are and how they relate to conventional matter and energy.Arti...
“Even though we can calculate how much dark matter there is in the universe, we still know little about what dark matter is. The particles in dark matter must either have a lot of mass, or there must be very many of them. Neutrinos meet all the requirements of dark matter. But there...
Though the matter in the universe that is visible to our eyes, such as galaxies, stars, and planets, make up the largest percentage of the known universe, more exists. The rest of the universe (about 5%) is comprised of dark matter that is invisible and impossible to detect.with optical...
This backed up a similar high-energy positron excess uncovered by the PAMELA and Fermi satellites in 2008 and 2011, respectively. Some saw the confirmed excess as possible proof for the existence of dark matter through the annihilation of “weakly interacting massive particles” or WIMPs – the...
A prevailing candidate of the pseudoscalar field ϕ has been provided by an axion-like particle (ALP), and a possibility that photon's birefringence is caused by a cosmic background of the ALP constituting dark energy or dark matter has been developed [27–34]. Then, after the measurement...
However, when the team adjusted the properties of the dark matter in their models to make it self-interacting, they found that the spike absorbed the energy without being disrupted. The black holes continue to spiral inward and into the zone where they emit gravitational waves that pulsar ...
High Energy Physics - PhenomenologyE. Nardi, F. Sannino and A. Strumia, Decaying dark matter can explain the electron/positron excesses, JCAP 01 (2009) 043 [arXiv:0811.4153] [SPIRES].E. Nardi, F. Sannino and A. Strumia, Decaying Dark Matter can explain the electron/positron excesses, ...
“The energy signatures radiating from this part of our galaxy suggest that there is a constant, roiling source of energy doing just that, and our data says it might come from a much lighter form of dark matter than current models consider.” ...