Dark matter is an unidentified type of matter comprising approximately 27% of the
mass and ..... They have an uncommonly low ratio of visible to dark matter, and
have few bright stars at the center ...
Today, we do not know what is the exact cause of this force, just that it exists.
Since we call the matter that we cannot observe directly "dark matter," we call this
Click play to hear me read this to you! Our friends at W.A. Gayle Planetarium in
Montgomery, Alabama, wonder, "How do we know dark matter exists if we can't ...
What do we mean by dark .... Because this matter gives off little or no light, we call
it .... have at least 10 times as much mass in dark matter as they do in stars,.
Photo: A simulation of the dark matter distribution in the universe 13.6 billion
years ago ... or less the same speed regardless of where they are in the galactic
disk. ... For lack of a better name, scientists call this mysterious force dark energy.
May 1, 2013 ... Dark matter emits no light, and cannot be directly observed, but scientists think ...
If scientists can't see dark matter, how do they know it exists?
The rest they call, for want of a better word, dark: 23 percent is something they
call dark matter, and 73 percent is something even more mysterious, which they ...
How do we actually know that there is so much invisible matter out there? ... This
“something else” we call dark energy, and it has the peculiar property that it ...
Nowadays we prefer to call the missing mass "dark matter," for it is the light, not
the ... study dark matter by its effects on the bright matter that we do observe.
Just because scientists don't know what to call dark matter doesn't mean they don
't know anything about it. They know, for example, that dark matter behaves ...