Two Tiny Asteroids Zipped Close by Earth

Two small asteroids zipped close by Earth on March 26 2012, passing between our planet and the orbit of the moon. As said Nasa scientists this two asteroids not pose any threat of impacting our world. The two space rocks flew by Earth in rapid fire. According to astronomers with NASA’s Asteroid Watch program, one asteroid zoomed by early in the day while the second buzzed the planet at 1:09 p.m. EDT (1709 GMT).

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New Study May Contradict Reigning Moon Formation Theory

According to a new study that may contradict the reigning moon-formation theory far more of the moon may be made of material from Earth than previously thought. Scientists have suggested that the moon was created when a Mars-size object named Theia collided with Earth 4.5 billion years ago, with more than 40 percent of the moon made up of debris from this impacting body. However, researchers had expected this alien world to be chemically different from Earth, and past studies have revealed that the moon and Earth appear quite similar when it comes to versions of elements called isotopes, more so than might be suggested by the current Theia model.

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Moon Magnetism

Study Suggest New Data About Moon Magnetic Mystery

According to new study the moon may have possessed a magnetic field for much longer than previously thought, one that was also much stronger than scientists had predicted. Earth’s magnetic field is created by its dynamo, its roiling molten metal core. Scientists have long suspected that the moon once had a dynamo as well, since evidence of magnetism was found in rocks brought back from the moon by Apollo astronauts. But, meteoroids colliding with the moon could have created plasma, which could in turn have generated magnetic fields.

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Lyman Alpha Mapping Project

LAMP Reveals Lunar Surface Features

New maps produced by the Lyman Alpha Mapping Project aboard NASA’s Lunar Reconnaissance Orbiter reveal features at the Moon’s northern and southern poles in regions that lie in perpetual darkness. LAMP, developed by Southwest Research Institute, uses a novel method to peer into these so-called permanently shadowed regions (PSRs), making visible the invisible. The LAMP maps show that many PSRs are darker at far-ultraviolet wavelengths and redder than nearby surface areas that receive sunlight. The darker regions are consistent with large surface porosities, indicating “fluffy” soils, while the reddening is consistent with the presence of water frost on the surface.

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