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Asteroid Vesta Has Unique ‘Space Weathering’

By Guest PostNovember 1, 2012Scienceairless bodies, analysis, asteroid belt, brown university, carle pieters, dawn spacecraft, energetic particle, geologist, giant asteroid, gravitational characteristics, lunar surface, metal nanoparticle, mineral composition, moon, nanophase coatings, nanophase weathering, NASA, phenomenon, solar system, solar wind, space weathering, vaporized meteorite, vesta

Space weathering — a darkening of lunar surfaces by solar wind and metal nanoparticles from vaporized meteorites — appears to happen differently on Vesta, the largest body in the asteroid belt. The discovery, from NASA’s Dawn spacecraft, has planetary geologists returning to their lunar data for another look and further analysis.

PROVIDENCE, R.I. [Brown University] — The surface of the giant asteroid Vesta is weathering in a way that appears to be completely different from any other asteroid yet visited, according to new data recorded by NASA’s Dawn spacecraft. This new type of space weathering suggests that there’s something about Vesta — perhaps its mineral composition or its position in the solar system — that makes its surface environment fundamentally different from other asteroids studied thus far.

The new data are presented in a paper published Nov. 1, 2012, in the journal Nature. (more…)

Three Giant Spaceships to Attack Earth in 2012?

By PravdaDecember 23, 2010Science Fictionalaska, aliens, americans, ancient ruins, armstrong and aldrin, carcass, civilizations, earth, extraterrestrial spaceships, haard search system, human footprints, ken johnston, lunar surface, mayan calendar, moon, optical telescopes, orbit, phenomenon, pluto, search for extraterrestrial intelligence, seti, spaceships, three giant spaceships, time science, ufo, ufo sightings

UFO encounters became especially frequent in the middle of the 20th century, when it became impossible to disregard incidents of UFO sightings anymore. Special services started establishing special departments for air defense troops, secret laboratories were organized to study the phenomenon. It is not ruled out, that secret services have already had chances to study fragments of alien spaceships or even aliens themselves.

It is about time science should say its word regarding the problem, and it did. SETI (Search for Extraterrestrial Intelligence), an independent non-commercial organization, released a sensational statement. (more…)

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Asteroid Vesta Has Unique ‘Space Weathering’

Three Giant Spaceships to Attack Earth in 2012?