Questions about dark matter/energy - Physics Forums
Jan 19, 2024 · Does the astrophysics community really think dark energy/matter is real, or that we just haven't figured out the actual physics of what is happening and this just makes it work out (to our …
Dark Energy, Dark Matter and the Speed of Light - Physics Forums
Nov 28, 2022 · Confusion between dark matter and dark energy is noted, with participants emphasizing their distinct roles in cosmology. Some participants express skepticism about the reliance on dark …
Could Dark Matter/Energy be the byproduct of annihilation?
Dec 8, 2022 · It establishes that dark matter and dark energy do not behave like the products of matter-antimatter annihilation, which typically results in radiation. Instead, dark matter interacts …
Dark matter and the fabric of space time, • Physics Forums
Feb 28, 2019 · The discussion centers on the misconception that the fabric of space could be a candidate for dark matter, when in fact, dark energy is the correct term for the phenomenon causing …
Dark matter and energy explained by negative mass
Dec 5, 2018 · The discussion revolves around a paper proposing a model of dark matter and dark energy based on the concept of negative mass. Participants explore the implications of this model, …
Percentage of Matter, Dark Matter and Baryonic Matter
Dec 21, 2014 · The discussion revolves around the percentages of different components of the universe, specifically baryonic matter, dark matter, neutrinos, and dark energy. Participants explore how these …
What Is the Difference Between Dark Matter and Dark Energy?
Jul 31, 2004 · Dark matter and dark energy are distinct components of the universe, with dark matter providing the gravitational mass necessary to hold galaxies together, while dark energy is …
Does dark matter travel faster than light? • Physics Forums
Jun 1, 2019 · If dark matter has a mass half the ‘mass’ of light but has, for example, the same energy, then it must travel faster than light. General relativity does not exclude the possibility of faster-than …
The magnetic field as dark matter - Physics Forums
Jan 28, 2008 · The discussion explores the concept of whether magnetic fields could be considered a form of dark matter, particularly focusing on the energy associated with magnetic fields and their …
Proportion of dark energy and dark matter • Physics Forums
Jan 19, 2010 · Dark energy constitutes approximately 72% of the universe's mass density, while dark matter makes up about 23% and regular matter around 5%. The discussion raises questions about …