Planets are km-size bodies, but it is particularly puzzling how solid grains have grown to sizes beyond cm to m. Water ices can improve the sticking of such grains, but does this imply that ices from other molecules improve the sticking as well?
The third Extreme Solar System conference was held between Nov 29 to Dec 4th, in Kona, Hawaii, on the 20th anniversary of the first exoplanet detection around a main sequence star. This astrobite gives a brief overview of the conference.
Spirou often runs into fantastic adventures with his courageous, and sharp pet squirrel Spip. Their next adventure: a radial velocity spectrograph. What sophisticated technology is this? How does it work? What can it help us find?
Some variable stars seem to be “golden”, but is this property fundamental or just chance?
Astronomy & astrophysics is certainly an exciting field of research, but imagine there is a lot of research in other fields as well. How has research across different disciplines evolved in the past and how will astrophysics & astronomy do in terms of interdisciplinarity in the future?
How to form clumps in the intermediate ranges of massive protoplanetary disks? Could these later be planets?