Astrophysiker berechnen Impaktwahrscheinlichkeit und Kratergröße von Kleinplaneten
Die Astrophysiker Mattia Galiazzo und Rudolf Dvorak von der Universität Wien untersuchten gemeinsam mit Elizabeth A. Silber (Brown University, USA) die langfristige Bahnentwicklung von Centauren – Kleinplaneten des Sonnensystems. (more…)
PASADENA, Calif. — NASA’s Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as the “Late Heavy Bombardment,” which may have brought water and other life-forming ingredients to Earth.
During this epoch, comets and other frosty objects that were flung from the outer solar system pummeled the inner planets. The barrage scarred our moon and produced large amounts of dust. (more…)
