Carbonaceous chondrite (CC) meteorites are fragments of planetesimals that hold clues about the early solar system’s organic matter. Amino acids are key to life on Earth; thus their study from […]
The bulk silicate Earth (BSE) is depleted in moderately volatile elements, indicating Earth formed from a mixture of volatile-rich and -poor materials.
Carbon-containing meteorites look like they had less severe impacts than those without carbon because the evidence was blasted into space by gases produced during the impact. The Kobe University discovery […]
![Orbital distribution of 7,982 impacts detected by EDMOND, CAMS, GMN, FRIPON, and EFN networks. Each impact is estimated to be equal to or greater than 10 g (diameter ⪆2 cm) at the top of the atmosphere. Orbital distribution is normalized to the impact probability, as calculated using the method of Pokorn`y and Vokrouhlick`y [96]. Despite this, there still exists a concentration of meteoroids on orbits with q∼1 au -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/04/Perihelion-History-And-Atmospheric-Survival.png?resize=1200%2C721&ssl=1)
Models predict that more than half of all impacting meteoroids should be carbonaceous, reflecting the abundance of carbon-rich asteroids in the main belt and near-Earth space.
An international team of researchers may have answered one of space science’s long-running questions – and it could change our understanding of how life began.
The Aguas Zarcas (Costa Rica) CM2 carbonaceous chondrite fell during night time in April 2019. Security and dashboard camera video of the meteor were analyzed to provide a trajectory, lightcurve, […]
The nucleosynthetic isotope signatures of meteorites and the bulk silicate Earth (BSE) indicate that Earth consists of a mixture of “carbonaceous” (CC) and “non-carbonaceous” (NC) materials.
Large meteorite impacts must have strongly affected the habitability of the early Earth. Rocks of the Archean Eon record at least 16 major impact events, involving bolides larger than 10 […]
An international team led by three researchers from the CNRS, the European Southern Observatory (ESO, Europe), and Charles University (Czech Republic) has successfully demonstrated that 70% of all known meteorite […]
[University of Cologne] Scientists have pinpointed the origin and composition of the asteroid that caused the mass extinction 66 million years ago, revealing it was a rare carbonaceous asteroid from […]
