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“Dark Matter”

Dec 26, 2015 02:00 AM ET
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?
Dec 4, 2015 01:21 PM ET // Ian O'Neill
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.
Nov 23, 2015 03:48 PM ET // Ian O'Neill
Are the planets of the solar system sprouting invisible dark matter 'hairs'? If so, does this indicate an interplanetary trend of dark matter 'beards'?
Nov 19, 2015 09:01 PM ET // Ian O'Neill
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.
Nov 17, 2015 06:58 PM ET // Ian O'Neill
Shimmering deep inside a cosmic supervoid is MCG+01-02-015, a pristine galaxy that is the undisputed galactic loner of the universe.
Oct 29, 2015 01:15 PM ET
Scientists are taking initial steps in a long-term effort to learn as much as they can about gravitational waves -- mysterious undulations in the fabric of space-time that have so far evaded clear detection.
Oct 7, 2015 02:55 PM ET // Ian O'Neill
Our universe is actually really simple, it's just our cosmological theories that are getting needlessly complex, argues one of the world's leading theoretical physicists.
Aug 14, 2015 01:26 PM ET
The great cosmologist Bruce Springsteen once sang "everything dies, baby, that's a fact," but does that assertion include the little universe we call home? Julian takes us through the current theories on what will happen to our space and time.
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