Dark Matter
Makes up 27%
How much of the universe includes Dark Matter?
Makes up about 68%
How much of the universe includes Dark Energy?
Slows down the expansion of the universe.
What does Dark Matter do?
-Form of stars or planets
-Dark clouds or normal matter
-Antimatter
-Large galaxy-sized black holes
What is Dark Matter not?
A new kind of dynamical energy fluid or field, something that fills all of space but something whose effect on the expansion of the universe is the opposite of that of matter and normal energy.
What is quintessence?
Speeds up the expansion of the universe.
What does Dark Energy do?
The deciding factor is the amount of mass in the universe: the more mass, then the more overall gravity.
What determines the fate of the universe?
Scientists have found that the amount is unmeasurable.
How much Dark Energy is out there?
-Formed from the Big Bang
-Not much is known
What do Dark Matter and Dark Energy have in common?
It is thought that dark matter is not baryonic at all but made up of exotic particles.
What are Weakly Interacting Massive Particles (WIMPS)?
The human understanding of gravity, as embodied within Einstein's general theory of relativity.
What is considered inaccurate and need of revision that could explain Dark Energy?
No one knows.
Are Dark Matter and Dark Energy related?
Possibilities that baryonic matter could still make up dark matter if it were all tied up in brown dwarfs or in small, dense chunks of heavy elements.
What are Massive Compact Halo Objects (MACHO)?
Albert Einstein was the first person to realize that empty space is not nothing. Space has amazing properties, many of which are just beginning to be understood. The first property that Einstein discovered is that it is possible for more space to come into existence. Then one version of Einstein's gravity theory, the version that contains a cosmological constant, makes a second prediction: "empty space" can possess its own energy. Because this energy is a property of space itself, it would not be diluted as space expands. As more space comes into existence, more of this energy-of-space would appear. As a result, this form of energy would cause the universe to expand faster and faster.
What could explain Dark Energy?
It is suggested that the apparently disparate cosmological phenomena attributed to so-called dark matter and dark energy arise from the same fundamental process: the emergence, from the quantum level, of spacetime itself.
What are the similarities of the properties between Dark Matter and Dark Energy?