The variations of the cosmic dust flux falling onto Earth since 40 Ma have been estimated using the noble gas composition of marine sediments

The influx of extraterrestrial material onto Earth is well known through the fall of meteorites, such as the one which may have caused the dinosaurs’ extinction 65 Myr ago. However, the main amount of extraterrestrial material reaching the Earth (~40,000 tons/yr) comes from sub-millimetric particles, called interplanetary dust particles and forming the cosmic dust, which generally originate from asteroid collisions […]

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Publication : Time evolution of snow regions and planet traps in an evolving protoplanetary disk

K. Baillié, S. Charnoz, and E. Pantin, members of Interface Project “From dust to stars”, publish their results in the newspaper Astronomy & Astrophysics. Their article is entitled Time evolution of snow regions and planet traps in an evolving  protoplanetary disk. Artist’s impression of a protoplanetary disk © Dante & Baillié References : K. Baillié, S. Charnoz, and E. Pantin. Astronomy […]

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Publication: New look at the origin and the growth mechanism of Titan dunes

Titan, the largest satellite of Saturn, has a thick atmosphere dominated by nitrogen and carbon compounds. This satellite has many similarities with Earth, including a very active weather cucle, essentially controlled by methane, and many landscapes with extremely familar faces in particular huge fields of linea dunes around the equator. Such dune are observed in many terrestrial deserts and even […]

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