Activity for DWKraus‭

Type	On...	Excerpt	Status	Date
Question	—	How close an orbit could you get to Earth with a planet-sized object/ship without severely disrupting Earth's orbit? My idea involves an alien spaceship inside a roughly Earth to Mars sized/massed planet, but the whole planet is displaced when the drive is activated. If you wanted to travel back to our solar system but didn't want to destroy Earth or send it out of orbit, is there a temporary orbital path that woul... (more)	—	over 4 years ago