ScienceDaily: Cosmic Rays News |
| The sun's magnetic field is about to flip Posted: 06 Aug 2013 02:16 PM PDT Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip. |
| Explosion illuminates invisible galaxy in the dark ages Posted: 06 Aug 2013 12:57 PM PDT More than 12 billion years ago a star exploded, glowing so brightly that it outshone its entire galaxy by a million times. This brilliant flash traveled across space for 12.7 billion years to a planet that hadn't even existed at the time of the explosion -- our Earth. By analyzing this light, astronomers learned about a galaxy that was otherwise too small, faint and far away for even the Hubble Space Telescope to see. |
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