Unweaving the Rainbow Makes it More Beautiful

Newton's unweaving of the rainbow led on to spectroscopy, which has proved the key to much of what we know today about the cosmos. And the heart of any poet worthy of the title Romantic could not fail to leap up if he beheld the universe of Einstein, Hubble and Hawking. We read its nature through Fraunhofer lines - 'Barcodes in the Stars' - and their shifts along the spectrum. The image of barcodes carries us on to the very different, but equally intriguing, realms of sound ('Barcodes on the ...

 The "Sagan Effect"

With Cosmos, Sagan sought to put an end to the fear and to inspire the kind of wonder Hubble's lectures had inspired in the 1930s and 1940s and the Moon landing had inspired in 1969. The series was enormously successful. For the first time since Hubble, a huge audience was engaged in exploring the grand questions of life, nature, the structure of the uni¬ verse, mythology, and what it might all mean, how it might all fit together, the mystery of it all. It examined how our search for meaning...

 Einstein's Cosmological Constant

Georges Lemaitre was a pudgy, pinkish Belgian Jesuit abbe—a Catholic priest—who also happened to be a skilled astronomer. Lemaitre had noticed that Einstein's general theory of relativity would have implied that the universe was expanding but for a troublesome little mathematical term called the cosmological constant that Einstein had inserted into his equations. Lemaitre saw no convincing reason why the cosmological constant should be there. In fact, Einstein himself had originally calc...

 Big Bang Does Not Preclude a Creator

Hubble's observations suggested that there was a time, called the big bang, when the universe was infinitesimally small and infinitely dense. Under such conditions all the laws of science, and therefore all ability to predict the future, would break down. If there were events earlier than this time, then they could not affect what happens at the present time. Their existence can be ignored because it would have no observational consequences. One may say that time had a beginning at the big ba...

 Reading Comments on the Internet Feels Like It's the End ...

Watching an unbelievably beautiful video of Hubble probing the edge of space: unfathomable 17.000 comments, but half of them inane, gross, with atrocious spelling, insults from childish name-calling, immature outbursts, vicious moronic bullying to outright gibberish insanity. Reading YouTube comment threads can make you sense the end of the world as we knew it. How sad, but I guess one doesn’t have to look? ... The Internet brings the promise of connecting it all. But it could also conne...