Cosmos

Unknown “Structures” Tugging at Universe, Study Says

Publication: National Geographic News   Date: November 5, 2008   View Article

Something may be out there. Way out there.

On the outskirts of creation, unknown, unseen “structures” are tugging on our universe like cosmic magnets, a controversial new study says.

“Cosmic Train Wreck” May Derail Theories of Dark Matter

Publication: National Geographic News   Date: August 22, 2007   View Article

New observations of a massive intergalactic collision are raising more questions about the mysterious nature of dark matter.

The study looked at three huge galaxy clusters that are merging into an even bigger cluster called Abell 520, located about three billion light-years from Earth.

“Lost” Dark Matter Discovered in Space, Scientists Say

Publication: National Geographic News   Date: September 28, 2005   View Article

Astronomers say they have found a type of matter that cannot be seen, but which is thought to dominate the cosmos, in a place where it was thought not to exist.

The finding gives weight to a common theory of how the universe is pieced together.

The exact nature of the matter, called dark matter, is unknown, but scientists believe it accounts for more than 90 percent of the mass in the universe.

© 2008-2010 Collected Writings By John Roach