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Neil deGrasse Tyson
“Earth’s Moon is about 1/ 400th the diameter of the Sun, but it is also 1/ 400th as far from us, making the Sun and the Moon the same size on the sky—a coincidence not shared by any other planet–moon combination in the solar system, allowing for uniquely photogenic total solar eclipses.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“A few years ago I was having a hot-cocoa nightcap at a dessert shop in Pasadena, California. Ordered it with whipped cream, of course. When it arrived at the table, I saw no trace of the stuff. After I told the waiter that my cocoa had no whipped cream, he asserted I couldn’t see it because it sank to the bottom. But whipped cream has low density, and floats on all liquids that humans consume. So I offered the waiter two possible explanations: either somebody forgot to add the whipped cream to my hot cocoa or the universal laws of physics were different in his restaurant. Unconvinced, he defiantly brought over a dollop of whipped cream to demonstrate his claim. After bobbing once or twice the whipped cream rose to the top, safely afloat. What better proof do you need of the universality of physical law?”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Collectively, these findings tell us it’s conceivable that life began on Mars and later seeded life on Earth, a process known as panspermia.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“By day, contrary to common wisdom, you probably won’t see the Great Pyramids at Giza, and you certainly won’t see the Great Wall of China. Their obscurity is partly the result of having been made from the soil and stone of the surrounding landscape. And although the Great Wall is thousands of miles long, it’s only about twenty feet wide—much narrower than the U.S. interstate highways you can barely see from a transcontinental jet.

From orbit, with the unaided eye, you would have seen smoke plumes rising from the oil-field fires in Kuwait at the end of the first Persian Gulf War in 1991 and smoke from the burning World Trade Center towers in New York City on September 11, 2001. You will also notice the green–brown boundaries between swaths of irrigated and arid land. Beyond that shortlist, there’s not much else made by humans that’s identifiable from hundreds of miles up in the sky. You can see plenty of natural scenery, though, including hurricanes in the Gulf of Mexico, ice floes in the North Atlantic, and volcanic eruptions wherever they occur.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“The cosmic perspective opens our minds to extraordinary ideas but does not leave them so open that our brains spill out, making us susceptible to believing anything we’re told. The”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

3879 The Atheist Book Club — 1654 members — last activity Jan 05, 2026 02:11AM
In these gilded halls we shall discuss the presence of the atheistic viewpoint in the written form. Are you a fan of Douglas Adams' scientific view of ...more
55570 Science and Natural History — 1136 members — last activity Sep 22, 2020 01:21PM
This group is for those that just can't get enough of science and the natural world. *** All books are chosen by group members *** ...more
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