for example you say no one has ever been to the moon, but can you prove it?

I don't say it with surety, but the Internet is full of speculations, such as:

• The US flag waving on the moon while there's no wind/air.
• No stars in the sky
• Moon rocks are exactly similar to Earth's
• Pictures of back side of the moon were kept highly confidential by NSA. Two people who had access, claimed that they saw buildings. Their access was denied later.
• Why there were no moon landings after 70s?

What's the proof that those footages were actually recorded on Moon? They could be filmed on Earth as well. What's the difference?

Not to forget the space race between USA and Russia at that time. Maybe someone faked it all to have an upper hand.

For example Proxima Centauri is supposed to be 4 light years away because that is how long it takes for light from that star to reach the Earth, now ask yourself how do scientists know the exact moment that light left that star?

You have given me an interesting topic to research about. I wonder why I never thought of the reference point like you did. I will study about it and will discuss with you soon.

Thank you for your participation. It was an interesting read.