Lots of the modern Physics swirls around the concept of Dark Matter and Dark Energy, meaning matter and energy that we cannot find to explain the *apparent* rotational speeds of the galaxies.

But we only see what we see. How galaxies appear to us right now may not be the way they actually are. Many recent discoveries are not reproducible with anything on the ground, so you'd need to have access to space telescopes, which themselves are single source.

While the Sun and the Moon have the same apparent size, how far is the Sun then? This is not so easy to measure, given that the Sun is a source of electromagnetic radiation in itself.

Much of the modern cosmology works around the Einstein field equations by proposing new metrics, which enable people to mathematically and theoretically investigate what would happen -type cases. But, these metrics cannot easily be shown to represent reality.

https://www.youtube.com/wa...

So when people dig up the Alcubierre -type warp drive publications, it is a theoretical what if scenario.

Usually, a new metric is proposed, which works with Einstein field equations. But the metrics have not been proven to actually represent the reality, it's a mathematical construct that enables (usually mathematical) investigation. People are looking at the stellar objects to see indirect verifications of what they propose.

Much of the modern day cosmology is actually built like this, a metric for black holes, a metric for going inside of the black hole, a metric for charged rotating black holes, you name it. A metric for the warp drive curving space time. A metric for black holes does not enable warp drives.

This is from the top of my head, while doing my best to avoid Maths. It's been two decades since I've read General Relativity.

https://en.wikipedia.org/w...

凄い！難しすぎて私には理解できないのですが、天体観測をしている人達はUFOをみないのだろうか？
見ていても秘密にしているのだろうか？

私は星座、星も動いている様に見えます。
彼らは星のフリをして沢山空にいると思います。👽🛸🌟