@faithfulomoy, this is a decent attempt on blackholes. It was quite informative.

However, your post is marred by plagiarism and your images are not from free sources. Although you cited them, but it doesn't work that way on SteemSTEM.

It's obvious you don't have idea about the steemstem guidelines. You should join the SteemSTEM discord server here:https://discord.gg/vwzWz3Z to speak to someone to mentor you.

You could also dm me. I go by the same username on discord.

Best wishes!