Primitive objects like comets hold important information on the material that formed our solar
system. Several comets have been visited by spacecraft and many more have been …

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

In 2018, images were released of a planet being formed around the star PDS 70, offering a
tantalizing glimpse into how planets come into being. However, many questions remain …

We investigate the delivery of regular and deuterated forms of water from prestellar cores to
circumstellar disks. We adopt a semi-analytical, axisymmetric, two-dimensional collapsing …

Context. Carbonaceous nano-grains play a fundamental role in the physico-chemistry of the
interstellar medium (ISM) and especially of photon-dominated regions (PDRs). Their …

There is evidence that protoplanetary disks—including the protosolar one—contain
crystalline dust grains on spatial scales where the dust temperature is lower than the …

Samples returned from comet 81P/Wild 2 by the Stardust mission confirm that substantial
quantities of crystalline silicates were incorporated into the comet at the time of its formation …

Context. X-ray-and extreme-ultraviolet-(together: XEUV-) driven photoevaporative winds
acting on protoplanetary disks around young T-Tauri stars may crucially impact disk …

Context. The presence or absence of ice in protoplanetary disks is of great importance to the
formation of planets. By enhancing solid surface density and increasing sticking efficiency …

Some planetary systems harbour debris disks containing planetesimals such as asteroids
and comets. Collisions between such bodies produce small dust particles, the spectral …