Search the Community
Showing results for tags 'cosmology'.
Found 5 results
Eventually, due to "dark energy", the universe will be expanding so quickly that it will break the speed of light. This, if I am not wrong, already happened at the beginning of the universe for 10 to the power of -43 seconds. So, what will happen once the universe is expanding at that speed. Will the laws of objects moving faster than the speed of light apply (mass increasing, time slowing down ect.)? I have to stress I am my no means an expert on the matter, if anyone could point out mistakes in this question please do. All answers would be much appreciated.
Hi This video was published on YouTube in March of this year and describes the development of universe in exponentially growing steps through time. That probably means that it is highly speculative, but it is interesting. I'm about halfway through at 7 billion trillion trillion trillion years in the future, and quite curious about how it will end.
The New Cosmos - David J Eicher: CUP ISBN 978-1-107-06885-8 I picked this book up at the Cambridge Univ Press book shop in Cambridge just before Christmas intending to read it over the holiday period. That did not happen. David Eicher writes for the Astronomy magazine in the US and this rather nice hardback tome is a series of 17 articles on the latest science with regards to many astronomical topics. It starts with an intro 'The awakening of astronomy' and then proceeds outwards from Earth, 'How the Sun will die', End of Life on earth', How the Moon formed' It covers both planetary and deep space. Excellent articles on the latest science of the Milky Way, how big is the Universe and then onto Dark Matter, Dark Energy and Black Holes. Each chapter is stand alone and the book can be picked up and put down, the chapters cover a short history of the subject and then introduce the latest science and thinking.. There are some beautiful illustrations and photos. There is just about something for everyone and I would give it a 9/10.
Hey Everyone. I believe almost everyone of us would be aware about the Bootes Void. If not then I'll explain. Bootes Void is a point in universe of massive volume and almost completely empty space. It's about 750 million light years from us and stretches for about a billion of light years. It definitely is huge but is also just that empty because such large space only contains about sixty galaxies. Now what's special about this place is that it is more mysterious than black holes, even more than primordial black holes. So there definitely are many possibilities and hypothesis, like expansion caused by alien species or merger of two voids. But I've a different speculation, based on my hypothesis, this void is probably the center of expansion of our universe. What if big bang actually took place there?!!! It probably may have.... What makes me think so is that the void is not empty at all, it probably is full of more dark matter in many parts of the universe and also a centre of Dark energy in universe which makes it expand like that. I guess almost everyone of us would be knowing of comparison of our universe' expansion with inflation (not the inflation in the beginning of expansion of our universe) of a balloon, then, yes it's true that if we mark any point on the balloon then it would look like it's expanding in every direction and the same is happening with our universe, wherever we observe, we find anything around it to going away from themselves, but we also know that a balloon has the centre of expansion from which we blows in it, similarly universe is also supposed to have an actual point of expansion and it probably is the bootes void! It is or not? Thank you. -Yash Tomar
I've just joined the forums. I came here because I wanted to interact with the people with whom I have something in common, make friends and share knowledge with all of them and learn from them. I hope it could work out well, I have also planned to publish a paper that I am preparing on dark matter that is supposed to be completed 6 months later, I'm currently 15 years and have no good friends of me, so I came here.