14 February 2020
Arrokoth helps resolve longstanding controversy on Solar System evolution
...in a local collapse cloud of the solar nebula. This is far removed from the other alternative longstanding theory of planetesimal formation, whereby objects from disparate parts of the nebula collided to form the object; a process called hierarchical...
January 2021
Evolution of volatiles on the Moon
...tidal dissipation and today is at 60 Earth radii. Large planetesimal impacts on the Moon result in magma filling the resulting ...heavy bombardment’. It was during this time that large planetesimals were impacting the Moon and blowing away a significant...
06 April 2020
Planets can form second atmospheres rich in CO, new study shows
... – could be a staple feature around many stars; at present more than 25 percent of stars have planetesimal belts massive enough to be tracked down by our telescopes through the infrared light given off by these systems, ...
February 2016
How to Build Planets
...that could play an important role in the formation of planetesimals and planets at large radii. Building planets The building ...the laboratory have identified two major hurdles to forming planetesimals in discs: radial drift and the inefficiency of ...
07 March 2016
Researchers show how water content in protoplanetary discs can affect planet formation
... protoplanetary disks around an evolving protostar. These infant planetesimals grow larger initially through the accretion of pebble-sized ...location and the initial time of when the tiny planetesimals are placed in the disc. Current theory also ...
27 June 2016
Protoplanetary disc shares similarities with our own Solar System say researchers
... material that is crucial for facilitating the rapid formation of planetesimals, that in turn decreases the time scale for giant planet.... This could be due to the collision of icy planetesimals inside the large cavity in the disc, which preserves ...
