Dark Energy

A deficiency in the cosmological model.

>>9129165
Nobody knows what dark matter is, but its existence is inferred from the motion of matter observed in space. Rotating or merging galaxies behave as though they have more mass than they should do based on what can be seen by telescopes, for example. The matter also doesn't block light coming from behind where it should be, so it can't be low-temperature objects like asteroids or interstellar planets - it doesn't interact electromagnetically at all, hence 'dark' matter. It also causes gravitational lensing, which the bending of light by a mass. There are numerous theories attempting to explain these anomalies without dark matter, but so far 'there just being a bunch of matter there that doesn't interact with light' produces predictions that most closely match what's observed. It also wouldn't be nearly the strangest thing in physics.

Dark energy is more complicated to understand, but essentially space that's mostly empty and flat (far away from the gravity of objects with mass) is expanding, and that expansion seems to be accelerating - this can be likened to empty space having a particular energy density.

Both of these things are areas of active research, both theoretical and experimental. Only time will tell what the truth really is.

>>9130553
It's possible we will never understand because we can't see passed the beginning of what we call time.
Think about a civilisation that arises somewhere in the universe at a time when all galaxies have drifted apart to the extent they can no longer be observed.
They'll discover realitiviy and quantum physics and all the same laws as us, yet their 'correct' picture of the universe will be different to ours. A single galaxy alone in the universe.
Falsifiable science will produce the wrong conclusions.

>>9129165
It is God, the creator of the universe.

Dark Matter = Neutralinos + unknown/unnamed subparticle

>>9129165
-Dark matter: Galaxies are spinning faster than they should, as if they had much more mass than it is visible.

The first logical conclusion is that there is a bunch of invisible stuff with mass. Hence dark matter.

Other ideas include gravity acting weird, but those are so far unsuccessful. So the idea of invisible matter is the preferred one, and the closest explanation to several phenomena.

One candidate of dark matter is what you describe, in a way. The big bang may have generated primordial black holes, which are an extreme form of spacetime distortions (valleys). But so far, this is an untested theory.

-Dark energy: The universe is expanding. In fact, the expansion is accelerating. If we count all the matter we see, and the matter we don't see, this shouldn't be.

A logical explanation is that something is adding negative pressure to the universe, per unit of volume. The math was developed (and then discarded) by Einstein, and it fits with everything else. This is another invisible source of energy, thus dark energy.

Other ideas include gravity acting weirdly at such large scales, but so far the models of weird gravity don't accurately represent reality.

Its just part of a big membrane growing.