big bang

Category archives for big bang

“Whenever you have infinities in a theory, that’s where the theory fails as a description of nature. And if space was born in the Big Bang, yet is infinite now, we are forced to believe that it’s instantaneously, infinitely big. It seems absurd.” -Janna Levin Of course, we don’t believe space was born in the Big…

“Science casts a long black shadow back over who we think we are, and where it falls the temperature falls with it. Its touch is chilly and unforgiving.” -Richard K. Morgan Here on Earth, when we’re dealing with normal matter, it’s relatively easy to measure the temperature of something. Even if you don’t have a thermometer…

“These neutrino observations are so exciting and significant that I think we’re about to see the birth of an entirely new branch of astronomy: neutrino astronomy.” -John Bahcall From the Hubble expansion of the Universe to isotropy and homogeneity to the light elements to the leftover radiation glow to the formation of large-scale structure in…

How did the Universe begin? (Synopsis)

“In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move.” -Douglas Adams So, you think you know about the beginning. About where everything came from, about how our Universe got its start. As my very blog is titled, it “Starts With…

“Physical reality does not require that we be pleased with its mechanism; we must see the implications of a theory for what they are and not for what we would like them to be.” -Kevin Michel If you’ve been following along for a while — particularly in light of the recent BICEP2 results — you’re…

“In the confusion we stay with each other, happy to be together, speaking without uttering a single word.” -Walt Whitman With the new result out from BICEP2, and even more firm evidence for cosmic inflation in place, many of you must be wondering what this means for the Multiverse. From our observable Universe, we can…

All about Cosmic Inflation (Synopsis)

“I don’t think at this point we have any way of knowing where the laws of physics came from. We could hope that when we really understand the laws of physics that they will describe how the Universe came into existence.” -Alan Guth So, since Monday’s big story — about the BICEP2 collaboration announcing the discovery of…

“If you put yourself in a position where you have to stretch outside your comfort zone, then you are forced to expand your consciousness.” -Les Brown On the one hand, you’ve got gravitation, the most powerful force in the Universe, trying to attract all the matter in it together. If it had its way, not only…

Did it all start with a bang? (Synopsis)

“Both the solutions must be rejected, and as these are the only statical solutions of the equations… the true solution represented in nature must be a dynamical solution.” -Willem de Sitter First off, welcome, everyone! As you well know, the main Starts With A Bang blog has moved to Medium, something that’s received mixed reviews from…

Ask Ethan #24: Cheating Time and Space

“For the wise man looks into space and he knows there is no limited dimensions.” -Lao Tzu You know the deal: it’s the end of the week, so it’s time for another Ask Ethan! You’ve continued to send in your questions-and-suggestions, much to my delight, and I’m pleased to tell you that this week’s question…