All Posts Tagged With: "Andrew Sullivan"
There’s a new power in America – atheism
The faithless are a growing force as the churches duck the challenges of the age
There is one thing that is not allowed in American national politics – and that is atheism. “In God We Trust” is on the currency; and the number of congressional members who avow no faith at all are about as plentiful [...]
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The Center for Naturalism
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A Chameleon Sky
The sands of time are running out for the central star of this the Hourglass Nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a sun-like star's life occurs as its outer layers are ejected and its core becomes a cooling, fading white dwarf. In 1995, astronomers used the Hubble Space Telescope to make a series of images of planetary nebulae, including the one above. Here, delicate rings of colorful glowing gas (nitrogen-red, hydrogen-green, and oxygen-blue) outline the tenuous walls of the 'hourglass.' The unprecedented sharpness of Hubble's images revealed surprising details of the nebula ejection process and may resolve the outstanding mystery of the variety of complex shapes and symmetries of planetary nebulae. Image Credit: NASA, WFPC2, HST, R. Sahai and J. Trauger (JPL)
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