It is also recognised that space missions themselves, at every stage of their design and execution, can also have a negative ecological impact on our planet and outer space too.
Cydnabyddir hefyd y gall teithiau i'r gofod eu hunain, ar bob cam o'r broses o'u cynllunio a'u cyflawni, hefyd gael effaith ecolegol negyddol ar ein planed yn ogystal â'r gofod.