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'''Antimatter comets''' and '''antimatter meteoroids''' are hypothetical [[comet]]s and [[meteoroid]]s composed solely of [[anti ...e Existence of Contraterrene Matter", the possibility that some comets and meteoroids could be made from "contraterrene" matter (i.e. antimatter).<ref name=NS197 ...

...sight]]. The in situ '''''Micrometeoroid analyzer''''' recorded impacts of meteoroids onto the sensitive detector surface and characterized their composition. Th ...he penetration limit of the Helios film depends strongly on the density of meteoroids. Impact experiments with a lab version of the Helios micrometeoroid sensor ...

...|isbn = 978-1-86094-026-2 }}</ref> and also in the trails behind ablating meteoroids.<ref> {{cite journal |last1=Oppenheim |first1=Meers M. |last2=Endt |first2= ...

...ter large objects down to submicron particles. Also, interstellar dust and meteoroids carry with them valuable information from their parent systems. Detection o ...e=The influence of meteor measurement errors on the heliocentric orbits of meteoroids|url=http://www.sciencedirect.com/science/article/pii/S0032063319304623|jour ...

...n light]] from myriads of interplanetary dust particles and as [[meteorite|meteoroids]] entering the [[atmosphere of Earth|atmosphere]]. By observing a [[meteor ...sized microphone dust detectors in order to detect impacts of micron sized meteoroids.<ref>{{cite journal |last1=McCracken |first1=C.W. |last2=Alexander |first2= ...

...1000&nbsp;km diameter down to m-sized objects, below which they are called meteoroids or dust. The size distribution of asteroids smaller than ~100&nbsp;km in si ...istance have a mean mutual collision speed of ~20&nbsp;km/s. At that speed meteoroids can catastrophically disrupt more than 10 times bigger objects and generate ...

...e, to increase the stabilizing torque. A problem with such tethers is that meteoroids as small as a grain of sand can part them. ...