big bang

Category archives for big bang

“The mind, once expanded to the dimensions of larger ideas, never returns to its original size.” -Oliver Wendell Holmes But it isn’t just your mind that expands as time goes on and you increase your knowledge, but the entire Universe as well. General Relativity, as it turns out, doesn’t leave us with much of a…

“It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. It’s a crazy world out there. Be curious.” -Stephen Hawking The story of where everything came from in the Universe — of how we came from empty, expanding space to…

“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.” -Carl Sagan That might be true: all the heavy elements — in theory — were created after at least one generation…

“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…