Recent content by ASTRA225o4

  1. ASTRA225o4

    Undergrad Was the Ancient Universe More Compact Between 12,000 BC and 400 BC?

    Ah I see. Thank you so much for the answer!
  2. ASTRA225o4

    Undergrad Was the Ancient Universe More Compact Between 12,000 BC and 400 BC?

    Hi, if possible I would like to ask a question to experts in this area, it is correct to say that: In ancient times, ranging from around 12,000 BC. until 400 BC, the universe was more compact, and consequently the distances between solar systems were smaller? From what I have been able to...
  3. ASTRA225o4

    Choosing the Right Thread Prefix for Your Science Questions

    Oh ok! Thank you!
  4. ASTRA225o4

    Choosing the Right Thread Prefix for Your Science Questions

    Hello, I'm just an enthusiast of both Astronomy and Astrophysics. I would like to ask a question in that section but, I'm new in the forum so I do not know what prefix I should use. There are 3 levels, should I pick the 3rd in order to ask that to the experts? Thank you so much.