Was it useful?
In my opinion, I think it was useful because if we never went into space we wouldn't have the technology we have now a days. For example, CAT scans which Nasa created from space can save many people's lives or scratch-resistant lenses, which is very useful since half the world's populationpopulation wear glasses or medical equipment like thermometers to check what temperature your body is to make sure if your sick or not.
Was it not useful?
In my point of view,I think it wasn't unuseful even though we could've improved a lot of things like climate change in other words Global warming or we could help people who have diseases like cancer or people who have had servers injuries in wars (as there has been some lately but let's talk about that another time).Well to be honest before I had thought it was not worthy of going into space,but then when I was searching all the useful stuff we got from space and I was pretty amazed.
In conclusion,I think it was useful getting into space!