Recent content by SpaceEnthusiast

Do not lose grip on reality. Though the light of an object takes a long time to reach its destination, the object that produced that light is long gone, therefore there is no past to go back to. So, you can arrive at where the light originated but what produced that light is no longer existent...

I heard that the drill used to measure Mars seismicity did not work as expected. Are they doing that or something similar in this mission? I was also considering if there are caves on Mars? I know that is dangerous to go where anything can collapse or block sunlight.

Space kind of protects itself. No one wants to loose access to it and the only way to have acces to it is peacefully. Any belicose action by anyone would close space to everyone including the aggressor. There is no way to limit space use to the good guys only. The bad guys know that it is a...