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!Jon Snow!
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Can someone explain the disappearance of 57% of dark matter since the Big Bang?
Is dark energy eating dark matter?
Is dark energy eating dark matter?
Catherine Heymans of the University of Edinburgh describes the research as "a fascinating result", and points out that it is part of a larger effort to reconcile discrepancies (or "tensions") between measurements made by Planck and those from other telescopes. "Other researchers have said that this tension can be resolved if the dark-matter particle is a sterile neutrino," she explains, adding, "others still are looking at different modified-gravity theories to explain the result."
Heymans also points out that the tension could be the result of systematic errors in how one or more of the observations are made. "More data and further meticulous analysis of those data and the systematics that might be associated with them are the way to find out if this fascinating theory could be true," she cautions.
Thanks for a specific link! Just noting that the paper you link to isBandersnatch said:Here's the paper:
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.181301
http://arxiv.org/abs/1406.7297
It's way beyond me, but I'd also love to hear what people think.
Dark matter is a type of matter that cannot be seen or detected using traditional methods of observation. It is believed to make up about 27% of the universe and is thought to be responsible for the formation and structure of galaxies.
Dark matter was first discovered through observations of the rotation of galaxies. Scientists noticed that the outer edges of galaxies were rotating faster than expected, indicating the presence of additional mass that could not be accounted for by visible matter.
The disappearance of dark matter since the Big Bang is still a mystery and a topic of ongoing research. One theory is that dark matter may have interacted with other particles in the early universe, causing it to decay or be transformed into other types of matter. Another possibility is that dark matter may have been present in different concentrations in different regions of the universe, leading to variations in its distribution over time.
The disappearance of dark matter has significant implications for our understanding of the universe and its evolution. Dark matter plays a crucial role in the formation and structure of galaxies, so its disappearance could change our understanding of how galaxies form and evolve. It could also impact our understanding of the expansion of the universe and the distribution of matter within it.
Yes, there are several theories and experiments currently being conducted to explain the disappearance of dark matter. Some involve looking for evidence of dark matter interactions with other particles, while others involve studying the structure of galaxies and the distribution of matter in the universe. However, more research and data are needed to fully understand this phenomenon.