The Hayabusa2 spacecraft collected samples from the surface of the carbonaceous near-
Earth asteroid (162173) Ryugu and brought them to Earth. The samples were expected to …

Chirality is a central feature in the evolution of biological systems, but the reason for
biology's strong preference for specific chiralities of amino acids, sugars, and other …

Samples from the carbonaceous asteroid (162173) Ryugu provide information on the
chemical evolution of organic molecules in the early solar system. Here we show the …

Metasomatism refers to the process during which a pre-existing rock undergoes
compositional and mineralogical transformations associated with chemical reactions …

While grounded in the hard sciences of physics, chemistry, geology, and astronomy, as well
as well-accepted principles in the life sciences, astrobiology remains the most speculative of …

Algal organic matter (AOM) is a potential precursor of disinfection byproducts (DBPs) in
water treatment. It is a major challenge to identify macromolecular DBPs due to the diversity …

Algal-derived dissolved organic matter (ADOM) originating from lysed Microcystis
aeruginosa cells was investigated as precursor material to form disinfection by-products …

Abstract On September 12, 2019 at 12: 49: 48 (UT) a bolide was observed by hundreds of
eye-witnesses from the Netherlands, Germany, Belgium, Denmark and the UK. One day …

Abstract On April 23rd, 2019, the Aguas Zarcas meteorite fall occurred in Costa Rica.
Because the meteorite was quickly recovered, it contains valuable extraterrestrial materials …

Magnesium is an abundant metal element in space, and magnesium chemistry has vital
importance in the evolution of interstellar medium (ISM) and circumstellar regions, such as …