big bang

Category archives for big bang

“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 You’ve been around here long enough to know about the Big Bang. The vast majority of galaxies are speeding away from us, but more than that, the…

The Dark Depths of the Universe

“By denying scientific principles, one can maintain any paradox.” -Galileo Galilei Day and night. It seems like the simplest, most natural thing about our world, that the Sun illuminates one half of the Earth at a time. While the Earth spins on its axis, orbiting the Sun, roughly half of our lives are spent bathed…

“I see a lot of new faces. But, you know the old saying, ‘out with the old, in with the nucleus.’” -The Simpsons Looking around the Universe today, there’s no doubt that there’s plenty of hydrogen and helium around; after all, it’s the nuclear fusion of hydrogen into helium that powers the vast majority of stars…

“Science cannot tell theology how to construct a doctrine of creation, but you can’t construct a doctrine of creation without taking account of the age of the universe and the evolutionary character of cosmic history.” -John Polkinghorne Out there in space, whether we look with our eyes or with a telescope — a far more…

What is the Big Bang all about?

“Twinkle, twinkle, quasi-star Biggest puzzle from afar How unlike the other ones Brighter than a billion suns Twinkle, twinkle, quasi-star How I wonder what you are.” -George Gamow The Big Bang is one of the greatest, revolutionary ideas in all of modern science, but it’s also one of the most successful ideas as far as…

Most Scientific Theories Are Wrong

“There could be no fairer destiny for any physical theory than that it should point the way to a more comprehensive theory in which it lives on as a limiting case.” -Albert Einstein Imagine: you’ve worked hard all your life, through your primary and secondary school education, where you worked hard to get into a…

“Anyone who has never made a mistake has never tried anything new.” -Albert Einstein Back when Einstein first proposed his theory of General Relativity, his revolutionary picture of the Universe was met with a mix of curiosity, awe, and intense skepticism. It isn’t every day that your most cherished of all physical theories — the…

The Cosmic Speed Limit

“All our sweetest hours fly the fastest.” -Virgil If you’ve been around the block once or twice, you know that the speed of light in a vacuum — 299,792,458 meters-per-second — is the absolute maximum speed that any form of energy in the Universe can travel at. In shorthand, this speed is known as c to…

“Despite its name, the big bang theory is not really a theory of a bang at all. It is really only a theory of the aftermath of a bang.” -Alan Guth So you finally understand it. The Big Bang tells us that the Universe was hotter, denser, and expanding at a faster rate in the…

What Makes Up The Universe?

“The cosmos is all that is or ever was or ever will be. Our feeblest contemplations of the Cosmos stir us—there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, or falling from a height. We know we are approaching the greatest of mysteries.” -Carl…