Laintal

 Research_News_20_02_2022 Further links and discussion can be found at the groups/links below Astronomy in New Zealand - Facebook https://www.facebook.com/groups/5889909863/ Astronomy in New Zealand - Groups.io https://groups.io/g/AstronomyNZ Google Group https://groups.google.com/g/nzastrochat Astronomy in Wellington https://www.facebook.com/groups/11451597655/ Blogger Posts http://laintal.blogspot.com/ Reddit https://www.reddit.com/user/Edwin_Rod_NZ Quaroa https://www.quora.com/q/astronomyinnewzealand Twitter https://twitter.com/EdwinRodham ----------------------------------------------------------------------------------------------------- Research papers Europa's Surface Water-ice Crystallinity https://arxiv.org/abs/2202.07430 Has the impact flux of asteroids varied through time on Mars the Earth and the Moon https://www.sciencedirect.com/science/article/pii/S0012821X2100618X#fg0020 Methane-saturated layers limit the observability of impact craters on Titan https://arxiv.org/ab