Astronomers are highly aware that the vast majority of matter in our universe is invisible, or 'dark.' So what the heck is it? Well, now we have a good idea as to what it probably isn't.
You know how hard it is to get your mind around the size of even a single galaxy in the universe? Now try to imagine a wall of galaxies cemented together by dark matter.
Dark matter could be made of particles that each weigh almost as much as a human cell and are nearly dense enough to become miniature black holes, new research suggests.
Tune in tonight at 7 p.m. for a fascinating Perimeter Institute public lecture on the mysteries of dark matter.
We hear a lot about dark matter, and how physicists are ever on the hunt for it. But how do you look for something you can't even see?
In new observations, an extremely concentrated knot of ancient galaxies undergoing energetic star formation at the dawn of our universe has been spied embedded in a knot of dark matter.
Are the planets of the solar system sprouting invisible dark matter 'hairs'? If so, does this indicate an interplanetary trend of dark matter 'beards'?
While measuring the speed of stars whirling around a nearby dwarf galaxy, astronomers have realized that a reservoir of dark matter may be lurking within.
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