One step closer to Mars: sending humans to an asteroid
Asteroid 2007 VK184 crossed out as potential menace for the planet
Since asteroid 2007 VK184 was discovered in November 2007 by the NASA-funded Catalina Sky Survey (CSS) at the University of Arizona has been added in the NASA´s asteroid impact hazard list. It was considered a real threat for a number of years with an estimated size of 130 meters and a rating of 1 on the 10-point Torino Impact Hazard Scale.
Space Weathering on Asteroids as Reason for their Disintegration
All surfaces of rocky bodies in our planetary system are exposed to a certain bombardment of (tiny) bits of rocks, so-called meteorites. Most ejecta out of these impacts are falling back to the lunar surface to build a layer of dust with time called regolith. Since that we have seen the nice footprints of astronauts in the lunar dust as proof: The Moon`s gravity
Metallic asteroids: threat or benefit?
«Our results suggest a higher number of metallic objects in the Solar System than previously suspected» said Alan Harris from the DLR Institute of Planetary Research in Berlin. Thanks to the new infrared method will be possible to identify many other metal-rich asteroids. What surprised the scientists was that metallic asteroids emit less