I highly doubt a second Earth will form. The Big Bang spread out gases. The gases diffused and stuff, fomed together using gravity and made stars and stuff. I don`t entirely remember. The planets are made of asteroids that have joined together using gravity. (A lot of asteroids.)
Even if there was a second Earth, there wouldnt be people on it. Its rumored that life came from molocules from space, such as oxygen, water, hydrogen, etc. When bacteria formed, there were mutations that made it stick out from the others. They were common enough, that they were able to produce enough for a different species. Then more mutations underwent, bla bla bla, I`m sure you know the rest. One example of a mutation was opossable thumbs. Some mutations werent beneficial, and the organism died. Those that survived reproduced, and had offspring with the same traits. This went on for a long time, creating diverse species of organisms.
So in order for the planet to produce life, you need certain elements. And in order to produce inteligent species, you`ll need to undergo mutations. (Not you, the simple species, such as bacteria.) However this will take millions to billions of years to happen. So I doubt it will just start with little people on it.
People are just scared of the world ending. It was rumored several time and were still here. Right? Infact, the meteor thing is said to be highly unlikely. What I do know that will end all life on Earth, and even the entire universe, is that black matter, or something, is making the universe expand faster and faster. Then something about the tempatures will fall to like -500 degrees or something, (maybe colder.) I doubt anything will live then. I don`t remember it all, but thats what will for sure kill us, because it takes affect all over the universe, (Universe= Everything in existence. No where to run.) Unless we can create some kind of shelter with a continuous food supply, then were dead too. But before all that happens, the Sun will die out. So we`ll need a new planet, with life supporting tempatures, and we`ll need water and oxygen. If its too hot, we`ll die, and our oceans will boil away. If its too cold, our oceans will freeze, and we`ll die.
Sun dies out first, than trillions of years later, the black matter thing will pull the universe apart, making it wider, and we`ll be isolated from the stars. First we`ll lose our gravitational pull from the sun, the Earth will freeze, and be shot out into space. We may crash into a star and burn, or another planet and be crushed. Black matter is invisible, AND the only way you will know its there, is if you see something like, ripples in the sky. Uhh. Example, it will push the light around it away, so you wont see it. But the things around it will appear to be moving, this is the light moving into the other light. Right now black matter is passing right through you, and you don't even know or feel it.
I say the best thing to do to avoid this is go into another dimension if possible, or go back in time to when the universe and Earth were still alive. I don`t see any other way out of this.
First things first, worry about global warming and the meteor, then the sun, then the expansion of the universe. BTW I also saw from the same show that told me about the universe expansion, that the Milky Way Galaxy, is pulling on another galaxy, and will merge. They said that at night, you can see the other galaxy, and will see a bunch of stars. Whats so bad about this? I forgot.... -_-'
I don`t remember the shows name, but I think it was aired on both, the Discovery Channel, and History Channel. The shows name? I forgot.... Hey its been a while. Well. I`m done. Any questions just ask.
One more thing, theres also something similar to black mattet, its called black space or something. The first time I heard of these is when I went to my Wii's New`s Channel. It had a topic about it, and I forgot what it said, until I saw the episode on the History Channel. What black space is? I forgot, but it has something to do with the black matter.
Well, I`m officially done for now. Until I remember something else.
Edit- ONE MORE THING. The reason why you cant see Black Holes is because, the gravitational pull is so strong, not even light can escape it. BUT the way you can see it is similar to seeing the black matter and black space thing. Look around it, and you`ll see like, light moving or things getting sucked into it. You`ll see like little ripples, and it`ll be blurry. I want to learn more about black holes, but teachers and people never talk about this. So I just learn, and remember stuff from TV.
If all the asteroids in the Asteroid Belt fused, they would only be about half the size of the Earths moon. Why want I informed about this? I didnt know until I came here. Anyway, I doubt the world will end yet. Even if it does, we don`t have to. We can do other things with future technology.