All Questions
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Transition to Neutron Star
If we're asked to believe that the explosive aspect of a supernova results from a rebound of residual free falling matter off of the stellar core, shouldn't we also be asked to believe that transition ...
user394592
2
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Gravity in a universe where all energy has been turned to mass [closed]
If all energy in the universe was turned to mass would gravity work?
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Are there other theories than gravitational attraction taken into account as a reason for the extreme accumulation of matter in the universe?
This question is about how small the interstellar density is (less than 1 atom per cubic centimeter).
But although the interstellar density is very low, matter tends to extremely aggregate in certain ...
- 282
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Mass and Gravitational Force [duplicate]
Why do mass has a tendency to attract other masses and form bigger cluster of mass?
What cause gravitational force to exist?
Is it so that at one point of time all matter in universe will form ...
1
vote
1
answer
66
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Would "gravity" and the "law of gravity" have a meaning in a universe without matter?
I was discussing the fact that if there was no matter in the universe, just vacuum and radiation, can we say that anything called gravity wouldn't exist?
In that universe, the Friedman equations ...
- 93
1
vote
1
answer
652
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Why does dark energy seem to push things apart? [duplicate]
Ordinary matter acts to slow down the expansion of the universe. That makes intuitive sense, because the matter is exerting a gravitational force, acting to pull things together.
Moreover, dark ...
1
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1
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What is the identity of Dark Matter?
What is the identity of dark matter?
Is it a particle?
Is it the lightest superpartner (LSP)?
Do the phenomena attributed to dark matter point not to some form of matter but actually to an ...
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