Why does the moon revolve around the earth?

It just moves forward. The moon isn’t stationary. It has inertia and no atmosphere in space to slow it down. It just goes. As it moves forward, the gravity of Earth tugs on it and it falls, but because it’s moving forward it misses Earth as it falls and goes around, again and again. That’s called an orbit.

Simply said.

Why doesn't anyone else besides me believe in time traveling?

I don’t know the answer to your question. However, consider this. We are not standing still. In time the Earth rotates around it’s axis, the Earth also rotates around the sun, the sun rotates around the galactic center and the galaxy is merging with Andromeda.
We are therefore moving at hundreds of thousands of miles per hour in space. Fast forward 10 seconds and you will find yourself in outer-space without a spacesuit!

Did we “accidentally” bring new bacteria to the moon or Mars via our space exploration programs?

Probably, and that’s why terraforming is a bad idea. Inside the scientifically minded community, there are two distinct ideas.
  1. Don’t contaminate. Leave whatever planet it happens to be in the original pristine condition so we can study it. (This is the predominant, tree hugging concept.)
  2. Screw number 1. Terraform the planet. Make it livable for humans, existing organisms, if they exist at all, be damned.

That being said, we do try all we can not to contaminate planets we send probes to even though some microorganisms may have made it through.

At present, and probably rightly so, NASA does not want to introduce organisms to other planets – or visa versa – introduce to Earth organisms from other planets on Earth. We may have already failed, but we still try.

How many satellites are there, and which are there on each planet?

If you count all the little nuts, bolts, loose wrenches and pieces of demolished satellites as satellites, then there’s a whole lot of junk floating around Earth. Thousands of pieces that pose a hazard.
spacejunk

Around the moon we have about three functioning spacecraft but have launched far more than that that have, over time, gone dead – perhaps crashed to the surface of the moon. Then we have the odd Juno spacecraft around Jupiter, the voyagers I and II and so on. We’ve put more space junk up there then anything else. This is a fairly accurate artist’s rendition of space junk around Earth.

The Russians have put several probes on Venus, the Americans and Europeans put a probe on Titan, we have probes on Mars, we flew a probe by Pluto and orbited Saturn for a long while before crashing deliberately. We presently have, as mentioned, the Juno spacecraft around Jupiter. We have hundreds of functioning satellites in orbit around Earth.

Do you believe NASA when they state that they destroyed the technology to return to the moon?

NASA never said anything like that. What did happen was that when the Apollo program was shut down, the building that the Apollo’s were built in was retooled for newer technology. In the process, some parts were thrown away because they were outdated and better stuff was available.
The reason we stopped going to the moon, at the time, was the Vietnam War. Congress needed to cut NASA’s budget to finance the war. After the near disaster of Apollo 13 and waning public interest, the money wasn’t there for continuing along that line.
Times have changed. The moon is a target once again. In the meantime, we have placed quite a few satellites in orbit around the moon. Due to problems with gravity variances on the moon, most of them have fallen from orbit and crashed on the moon’s surface or have become dead because of loss of power. However, there are at least three satellites right now that are active and in orbit around the moon. They are the Lunar Reconnaissance Orbiter (LRO), as well as the two ARTEMIS probes, which are functioning.
So not only did NASA not lose the technology, but we’ve been sending stuff to the moon for awhile. It’s just that we haven’t sent people in awhile.

Is Earth mentioned in the Star Wars universe?

Everybody wants to jump on this bandwagon and throw in their two cents. Remember: Star Wars took place A long, long time ago in a galaxy far, far away.
Star Wars happened way in the past, not the future, perhaps even before the existence of Earth. Furthermore, it happened in a very distant galaxy, perhaps millions or billions of light years away.
It’s simply a modern miracle that we can watch the story unfold before us on the big screen and your Blu-Ray player! Earth is not mentioned, and if it were, the people of Earth during those days would have been primitive indeed, if even we had evolved into homo-sapiens at that point in time.

What would happen if NASA had the U.S. Military's budget?

We spend 600 billion dollars every year on the military. What would happen if NASA had that kind of money? Here’s a very cool YouTube video that I love to watch!
[youtube https://www.youtube.com/watch?v=chLOgj8xjx8&w=854&h=480]

Are octopuses originally from another planet?

Are octopuses originally from another planet? It sure seems so, doesn’t it? They are a very weird creature!
But just because they are weird doesn’t mean they’re from another planet! In reality they are related to several other Earth critters. They are a mullusc and belong to the class cephalopoda along with squids cuttlefish and nautiloids. So although they are very weird, they are definitely not from another planet.
However, in the sense that we are all made of stardust that came from some Supernova explosion somewhere in the universe, then we are all from another planet or star!

Does anyone believe in extraterrestrial life? If yes, why? If no, why not?

Pretty much all of science and scientists in the world believe in extraterrestrial life, even though no evidence of extraterrestrial life has ever been found to date. Why do scientists believe in extraterrestrial life? Simply because there are billions of stars in the Milky Way galaxy and billions of galaxies in the universe. Somewhere it is highly likely that extraterrestrial life exists. It is even possible that extraterrestrial life of some form or another exists on Titan, within our own solar system!