ScienceDaily: Astronomy News |
- 'Hello, world!' NASA beams video from space station via laser
- Dark side of the moon: 55-year-old mystery solved
- How solar wind can break through Earth's magnetic field
| 'Hello, world!' NASA beams video from space station via laser Posted: 09 Jun 2014 11:09 AM PDT The high-definition video via laser transmission from space to ground, stating 'Hello, World!' was the first of its kind for the Optical Payload for Lasercomm Science from the International Space Station. |
| Dark side of the moon: 55-year-old mystery solved Posted: 09 Jun 2014 09:20 AM PDT The Man in the Moon appeared when meteoroids struck the Earth-facing side of the moon creating large flat seas of basalt that we see as dark areas called maria. But no "face" exists on farside of the moon and now, astrophysicists think they know why. This mystery is called the Lunar Farside Highlands Problem and dates back to 1959, when the Soviet spacecraft Luna 3 transmitted the first images of the "dark" side of the moon back to Earth. |
| How solar wind can break through Earth's magnetic field Posted: 09 Jun 2014 09:20 AM PDT Space is not empty. A wind of charged particles blows outwards from the Sun, carrying a magnetic field with it. Sometimes this solar wind can break through the Earth's magnetic field. Researchers now have an answer to one of the questions about how this actually occurs. When two areas with plasma (electrically charged gas) and magnetic fields with different orientations collide, the magnetic fields can be "clipped off" and "reconnected" so that the topology of the magnetic field is changed, they explain. |
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