ScienceDaily: Astronomy News |
| Heart of space weather observed in action Posted: 15 Jul 2013 01:49 PM PDT Two NASA spacecraft have provided the most comprehensive movie ever of a mysterious process at the heart of all explosions on the sun: magnetic reconnection. Magnetic reconnection happens when magnetic field lines come together, break apart and then exchange partners, snapping into new positions and releasing a jolt of magnetic energy. This process lies at the heart of giant explosions on the sun, such as solar flares and coronal mass ejections, which can fling radiation and particles across the solar system. |
| Hubble finds new Neptune moon: Smallest known moon in the Neptunian system Posted: 15 Jul 2013 10:20 AM PDT NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet. |
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