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 …

Water ice is abundant in protoplanetary disks. Its sticking properties are therefore important
during phases of collisional growth. In this work, we study the sticking and rolling of 1.1 mm …

Recent spatially-resolved observations of protoplanetary disks revealed a plethora of
substructures, including concentric rings and gaps, inner cavities, misalignments, spiral …

In the past, laboratory experiments and theoretical calculations showed a mismatch in the
derived sticking properties of silicates in the context of planetesimal formation. It has been …

Context. Observations at millimeter wavelengths of bright protoplanetary disks have shown
the ubiquitous presence of structures such as rings and spirals in the continuum emission …

Embedded class 0/I protostellar disks represent the initial condition for planet formation. This
calls for a better understanding of their bulk properties and the dust grains within them. We …

Recent laboratory experiments indicate that destructive collisions of icy dust particles occur
with much lower velocities than previously thought. These fragmentation velocities play a …

Many air-less planetary bodies, including the Moon, asteroids, and comets, are covered by
regolith. The thermal conductivity of the regolith is an essential parameter controlling the …

Soon after the arrival of the ROSETTA spacecraft at Comet 67/P Churyumov-Gerasimenko
the onboard instrument COSIMA (“Cometary Secondary Ion Mass Analyzer”) collected a …

Context. In protoplanetary discs, micron-sized dust grows to form millimetre-to centimetre-
sized pebbles but encounters several barriers during its evolution. Collisional fragmentation …