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Dark Matter And Philosophy
- It has been more than 50 years since astronomers first proposed "dark matter", which is thought to be the most common form of matter in the universe.
- Despite this, we have no idea what it is - nobody has directly seen it or produced it in the lab.
- Nevertheless, physicists today overwhelmingly favour the dark matter hypothesis incorporated in the so-called ΛCDM model (Lambda Cold Dark Matter).
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MORE IDEAS ON THIS
Philosophy to The Rescue
In the case of two competing hypotheses, what determines the final probability of each hypothesis is the product of the ratio between the initial probabilities of the two hypotheses (before evidence) and the ratio of the probabilities that the evidence appears in each case (called the likelihood ...
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Dark Matter Hypothesis
Newtonian laws may work slightly differently when there’s extremely small acceleration involved, such as at the edge of galaxies. This tweak was perfectly compatible with the observed galactic rotation. Nevertheless, physicists today overwhelmingly favour the dark matter hypothesis incorporated i...
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Still Clueless
Philosophy cannot ultimately tell us whether astronomers are right or wrong about the existence of dark matter. But it can tell us whether astronomers do indeed have good reasons to believe in it, what these reasons are, and what it would take for modified gravity to become as popular as dark mat...
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Other curated ideas on this topic:
Dark Matter Of The Universe
Dark Matter is a bizarre, unknown ingredient of the universe, which scientists cannot observe directly, but takes up 80 percent of the mass of the universe.
It is not seen by the naked eye as it does not emit light or energy. There are entire galaxies (like Dragonfly 44) that are made up e...
Gravity as a tool of discovery
The current description of gravity is so accurate that it has become a guide for cosmic discoveries.
American astronomers noticed in the 1960s that galaxies appear to rotate fast enough to spin-off stars. However, they did not whirl apart, and something seems to help them stick together. M...
Dark Matter and Modified Newtonian Dynamics
Gravity is the only force in physics that affects matter on humongously large scales however it can't, on its own, explain certain astronomical observations.
There are two options that we could forego with: unseen dark matter - that provides for the missing gravity, or to ...
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