Hydrogen isotopes are unique tools for identifying and understanding biological and
chemical processes. Hydrogen isotope labelling allows for the traceless and direct …

The isotopic dichotomy between non-carbonaceous (NC) and carbonaceous (CC)
meteorites indicates that meteorite parent bodies derive from two genetically distinct …

Little is known about the origin of the spectral diversity of asteroids and what it says about
conditions in the protoplanetary disk. Here, we show that samples returned from Cb-type …

The Earth formed by accretion of Moon-to Mars-size embryos coming from various
heliocentric distances. The isotopic nature of these bodies is unknown. However, taking …

Earth's mantle has a two-layered structure, with the upper and lower mantle domains
separated by a seismic discontinuity at about 660 km (refs.,). The extent of mass transfer …

The giant impact hypothesis remains the leading theory for lunar origin. However, current
models struggle to explain the Moon's composition and isotopic similarity with Earth. Here …

Studies of material returned from Cb asteroid Ryugu have revealed considerable
mineralogical and chemical heterogeneity, stemming primarily from brecciation and …

A common origin for the Moon and Earth is required by their identical isotopic composition.
However, simulations of the current giant impact hypothesis for Moon formation find that …

In the giant impact theory, the Moon formed from debris ejected into an Earth-orbiting disk by
the collision of a large planet with the early Earth. Prior impact simulations predict that much …

In 1794, the German physicist EFF Chladni published a small book in which he proposed
the extraterrestrial origin of meteorites. The response was skepticism and disbelief. In the …