Activity for Sava‭

Type	On...	Excerpt	Status	Date
Question	—	How close can a ship get to Sagittarius A? Assuming that the only fancy available technology is FTL drives (to get there) plus anything needed to protect and sustain a crew during the journey from Earth to Sagittarius A (whether it takes a few days or centuries is irrelevant to the question). Ship and crew have no way to counteract or protec... (more)	—	about 6 years ago
Question	—	How much mass does an object in low earth orbit need to create visible gravitational effects on the surface? The question stems from watching a scene from ID2 and seeing the massive alien mothership landing/crashing on the North Atlantic. What mass would a starship, or any other artificial object constructed in low earth orbit, need to be to start to create noticeable gravitational disturbances for the pla... (more)	—	about 6 years ago
Question	—	Vampires in space The setting is our Earth of today (2018) with one difference: some Space Agency decided to go back the Moon and built a ship that is ready to depart, using today's technology. For reasons, the crew of this mission is made of vampires and the Space Agency is fully aware of the fact, though it was kep... (more)	—	about 6 years ago
Question	—	How to transmit energy through rock and store it in crystals? I have created a species that is basically a sort of land coral covered in a thick carapace made of rock. They live on an Earth-like planet (Class M as they say in Star Trek) and behave like coral does on Earth, except for not living underwater. They feed on tiny particulate of matter in suspension... (more)	—	about 6 years ago
Question	—	Why would people living inside a nebula go into space? Assuming a sci-fi style nebula, like the thick clouds seen in Star Trek, extending several light years and hosting star systems inside, one of which gave rise to intelligent life up to current human intelligence level. The homeworld of that lifeform has a few natural satellites that are small astero... (more)	—	about 6 years ago