This review presents our understanding of cometary dust at the end of 2017. For decades,
insight about the dust ejected by nuclei of comets had stemmed from remote observations …

Interplanetary dust particles and meteoroids mostly originate from comets and asteroids.
Understanding their distribution in the Solar system, their dynamical behavior and their …

The annual flux of extraterrestrial material on Earth is largely dominated by sub-millimetre
particles. The mass distribution and absolute value of this cosmic dust flux at the Earth's …

Airbursts/impacts by a fragmented comet or asteroid have been proposed at the Younger
Dryas onset (12.80±0.15 ka) based on identification of an assemblage of impact-related …

Aluminum-magnesium isotopic analysis of plagioclase in the eucrite Piplia Kalan, with
27Al/24Mg ratio between 2000 to 7000, reveals the presence of excess magnesium-26 …

It has been proposed that fragments of an asteroid or comet impacted Earth, deposited silica-
and iron-rich microspherules and other proxies across several continents, and triggered the …

Meteorites have traditionally been defined as solid objects that have fallen to Earth from
space. This definition, however, is no longer adequate. In recent decades, man‐made …

Chondritic porous interplanetary dust particles (CP IDPs) collected in the stratosphere are
regarded as possibly being cometary dust, and are therefore the most primitive solar system …

Micrometeorites originate from the interplanetary dust complex and continuously fall to the
Earth's surface in large amounts. About 10 to 20% of micrometeorites are not melted upon …

Noble gases are not rare in the Universe, but they are rare in rocks. As a consequence, it
has been possible to identify in detailed analyses a variety of components whose existence …