Planets form and obtain their compositions in disks of gas and dust around young stars. The
chemical compositions of these planet-forming disks regulate all aspects of planetary …

Star-forming regions show a rich and varied chemistry, including the presence of complex
organic molecules—in both the cold gas distributed on large scales and the hot regions …

Carbonaceous meteorites are thought to be fragments of C-type (carbonaceous) asteroids.
Samples of the C-type asteroid (162173) Ryugu were retrieved by the Hayabusa2 …

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 …

Presented here are the observations and interpretations from a comprehensive analysis of
16 representative particles returned from the C-type asteroid Ryugu by the Hayabusa2 …

Samples of the carbonaceous asteroid (162173) Ryugu were collected and brought to Earth
by the Hayabusa2 spacecraft. We investigated the macromolecular organic matter in Ryugu …

The Hayabusa2 spacecraft arrived at the near-Earth carbonaceous asteroid 162173 Ryugu
in 2018. We present Hayabusa2 observations of Ryugu's shape, mass, and geomorphology …

The past two decades of lunar exploration have seen the detection of substantial quantities
of water on the Moon's surface. It has been proposed that a hydrated layer exists at depth in …

Geochemical and astronomical evidence demonstrates that planet formation occurred in two
spatially and temporally separated reservoirs. The origin of this dichotomy is unknown. We …

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 …