ScienceDaily: Cosmic Rays News |
- 'Cosmic own goal' another clue in hunt for dark matter
- NASA's STEREO maps much larger solar atmosphere than previously observed
- Puzzling X-rays point to dark matter
| 'Cosmic own goal' another clue in hunt for dark matter Posted: 25 Jun 2014 05:19 PM PDT The hunt for dark matter has taken another step forward thanks to new supercomputer simulations showing the evolution of our 'local Universe' from the Big Bang to the present day. Physicists say their simulations could improve understanding of dark matter, a mysterious substance believed to make up 85 per cent of the mass of the Universe. |
| NASA's STEREO maps much larger solar atmosphere than previously observed Posted: 25 Jun 2014 09:23 AM PDT Surrounding the sun is a vast atmosphere of solar particles, through which magnetic fields swarm, solar flares erupt, and gigantic columns of material rise, fall and jostle each other around. Now, using NASA's Solar Terrestrial Relations Observatory, scientists have found that this atmosphere, called the corona, is even larger than thought, extending out some 5 million miles above the sun's surface -- the equivalent of 12 solar radii. |
| Puzzling X-rays point to dark matter Posted: 25 Jun 2014 08:38 AM PDT Astronomers using ESA and NASA high-energy observatories have discovered a tantalizing clue that hints at an elusive ingredient of our Universe: dark matter. Astronomers believe that dark matter is the dominant type of matter in the Universe -- yet it remains obscure. Now a hint may have been found by studying galaxy clusters, the largest cosmic assemblies of matter bound together by gravity. |
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