Biggest Map Yet of Universe's Invisible Dark Matter Unveiled. AUSTIN, Texas — The hidden side of the universe is now a bit more illuminated thanks to the largest map yet of dark matter, the strange substance thought to inhabit much of space.
Scientists have created the largest scale rendering of dark matter across the universe, revealing a picture of the invisible stuff thought to represent 98 percent of all matter in the universe. Dark matter has never been directly detected, but its presence is felt through its gravitational pull on normal matter. Scientists suspect dark matter is made of some exotic particle that doesn't interact with regular atoms. "We know very little about the dark universe," said co-leader of the study, Catherine Heymans of the University of Edinburgh's School of Physics and Astronomy, during a press conference announcing the findings here at the 219th meeting of the American Astronomical Society. " Patricia Burchat sheds light on dark matter. Brian Greene on string theory.