This research was supported by the research project(Grant No.PGC2018-097374-B-I00,PI:JMT-R);which is funded by FEDER/Ministerio de Ciencia e Innovación-Agencia Estatal de Investigación.This project has also received funding from the European Research Council(ERC)under the European Union’s Horizon 2020 Research and Innovation Programme(Grant No.865657)for the project“Quantum Chemistry on Interstellar Grains”(QUANTUMGRAIN);We also express appreciation for the valuable video recordings obtained from Benicàssim(Castellón)by Vicent Ibanez(AVAMET).
On February 16,2021,an artificial object moving slowly over the Mediterranean was recorded by the Spanish Meteor Network(SPMN).Based on astrometric measurements,we identified this event as the reentry engine burn of a...
supported by the National Natural Science Foundation of China(No.11772023)。
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