3 ms·
> Also, launching between Mars and Earth is only possible during specific time windows. No. It is always possible, but the optimal windows happen every two ye
by anticensor 3y ago
> Also, launching between Mars and Earth is only possible during specific time windows.
No. It is always possible, but the optimal windows happen every two years. There is another 2nd optimal window, that happens every 5.5 months, which flies by Venus before continuing on to Earth/Mars.
- usrbinbash 3y agoYou are of course correct. I should have said: The lowest energy option for a Mars transfer happens every 24 months. Transfer outside that window is possible, but requires more energy, which increases the transfer time, limits the payload, or both.