Geophysical Circumstances Of The 1908 Tunguska Event In Siberia, Russia

Space Resource Utilization: A View from an Emerging Space Faring Nation

“…annette.froehlich@espi.or.at Volatiles and hydrocarbons: These processes would likely require some form of vapour processing that requires a generating and recycling of a carrier gas for heating and volatilization, collection of gas and entrained solids, separation of entrained solids, condensation of vapours collectively or separately and intensive heating/ cooling requirements. 36 In situ extraction: Processing of the materials at the asteroid. It requires less mass to be transported when compared to other methods, but requires a filtration process, pressurization of equipment and reheating/heat exchange processes for the drilling and heating of fluids.…”

“…35 The objectives of the National Space Policy are to (a) enhance international cooperation, (b) promote and enhance space awareness across all governmental departments and industries public and private, (c) develop adequate space capabilities, (d) develop and foster national space infrastructure, (e) strengthen the space technology base and (f) improve cooperative governance and coordination among intra-governmental and inter-agency cooperation, optimising the use of resources. 36 As its way of promoting the domestic space industry, the space policy envisions developing an industrial framework, building capacity in domestic industry, creating supportive regulatory environment for national space activities, managing innovation and technology transfer to and from space sector and promoting competitiveness of space industry. 37 None of the aforesaid documents specifically relate to resource extraction and utilisation, but they do promote and encourage overall development and enhancement of space and space-related activities within South Africa and internationally.…”

“…The Tunguska event 36 in Siberia, Russia, in 1908 was also an example. B612 Foundation, a non-governmental organization with the headquarters in the USA, is conducting an investigation which can help to identify big and threatening asteroids by cataloguing 90% of those with diameters larger than 140 m.…”

New data on accounts of the 1908 Tunguska event

“…But according to the account the sound's delay was just several minutes. Indeed, in the settlement Bel'skoe (Bel'skoe is on almost the same azimuth from the epicenter as Kamenskoe) which is ~60 kilometers from Kamenskoe no sound was heard, just oscillations of the ground [Ol'khovatov, 2022]. And nobody from this relatively large settlement (at the beginning of the year 1911 there were 756 residents) saw any bolide, despite absence of shading hills.…”

“…Regarding the strip seen from Znamenskoe approximately to the southwest, it can be said that it does not conform to the idea of the alleged Tunguska spacebody flying on the trajectory-3. Trajectories-1, and -2 can't be ruled out completely, but are unlikely due to the described rather tangible concussions (see also [Ol'khovatov, 2022]).…”