the support from the National Key R&D Intergovernmental Cooperation Program(2023YFE0102300/2022YFE0133700);the Regional Collaborative Innovation Project of Xinjiang(2022E01013);the National Natural Science Foundation of China(12173078);the“Belt and Road”Innovative Talent Exchange Program(DL2023046004)。
Theδ-Cancrid meteoroid stream forms four active meteor showers which are observable on the Earth annually during January–February and August–September.The stream's definite parent comet has not been established.We ...
funding from the Australian Government;the Government of Western Australiasupported by the B-type Strategic Priority Program of the Chinese Academy of Sciences(Grant Nos.XDB41000000 and NSFC 41972321);NSFC 41674098;CNSA D020205;the B-type Strategic Priority Program of the Chinese Academy of Sciences,Grant No.XDB18010104。
Accurate estimation of cratering asymmetry on the Moon is crucial for understanding Moon evolution history.Early studies of cratering asymmetry have omitted the contributions of high lunar obliquity and inclination.He...
the European Space Agency under the project“Jovian Micrometeoroid Environment Model”(JMEM)(Contract No.4000107249/12/NL/AF)at the University of Oulu,and by the Academy of Finland under the project“Earth and Near-Space System and Environmental Change”.
Jupiter is one of the major targets for planetary exploration,and dust in the Jovian system is of great interest to researchers in the field of planetary science.In this paper,we review the five dust populations outsi...
supported by the GROWTH project (National Science Foundation Grant No.1545949)
At 12:07 UT(8:07 pm China Standard Time)on 2017 Oct 4,a bright bolide was widely observed in the Shangri-La region of the Province of Yunnan,China(Figure 1).The event was well observed by the general public as it took...
We present simulation results on evolution development of orbital motion of short-period comets with the revolution period not exceeding 6-7 years, namely comets 21P/Giacobini-Zinner, 26P/Grigg- Skjellerup and 7P/Pons...
The hypothesis that bacteria and protozoa microorganisms are able to travel from one planet to another and become of exolife was not taken seriously by the scientific community for a long time. However at the end of t...
Two-station observation of meteors, especially a meteor trains, provides an effective approach to the measurement of the physical parameters. We have collected four special groups of photographs of meteoric trains tak...
All long-duration spacecraft in low-earth-orbit are subject to high velocity impacts by meteoroids and space debris. Such impacts are expected to occur at non-normal incidence angles and can cause severe damage to the...
supported by the National Natural Science Foundation of China(Grant No.40232026).
Excesses of 80Kr and 82Kr, produced by secondary neutron capture effects of 79Br and 81Br, were observed in meteorites. Epithermal neutron flux, Jn (30—300 eV), and fast neutron flux, Jn( > 5 MeV), were determined ac...
Thermal stress in meteoroids by aerodynamic heating is calculated for the ideal case of an isotropic,homogeneous,elastic sphere being heated at the surface with a constant heat transfer coefficient.Given enough time,t...