By Neil deGrasse Tyson
ISBN-10: 0691157243
ISBN-13: 9780691157245
A NEW YORK TIMES BESTSELLER
Welcome to the Universe is a private guided journey of the cosmos via 3 of present day top astrophysicists. encouraged via the greatly renowned introductory astronomy direction that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught jointly at Princeton, this e-book covers it all--from planets, stars, and galaxies to black holes, wormholes, and time travel.
Describing the newest discoveries in astrophysics, the informative and enjoyable narrative propels you from our domestic sun procedure to the outermost frontiers of area. How do stars stay and die? Why did Pluto lose its planetary prestige? What are the customers of clever lifestyles somewhere else within the universe? How did the universe commence? Why is it increasing and why is its enlargement accelerating? Is our universe on my own or a part of an unlimited multiverse? Answering those and plenty of different questions, the authors open your eyes to the wonders of the cosmos, sharing their wisdom of the way the universe works.
Breathtaking in scope and stunningly illustrated all through, Welcome to the Universe is if you happen to starvation for insights into our evolving universe that basically world-class astrophysicists can provide.
Read Online or Download Welcome to the Universe: An Astrophysical Tour PDF
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Extra resources for Welcome to the Universe: An Astrophysical Tour
Example text
Neil’s views on the status of Pluto have been ratified by the International Astronomical Union, in a historic vote in 2006. Thousands of new planets have been discovered circling other stars. We discuss them. The standard cosmological model, including normal atomic nuclei, dark matter, and dark energy, is now known with exquisite accuracy, thanks to results from the Hubble Space Telescope, the Sloan Digital Sky Survey, and the Wilkinson Microwave Anisotropy Probe (WMAP) and Planck satellites. Physicists have discovered the Higgs Boson at the Large Hadron Collider in Europe, bringing us one step closer to the hoped for theory of everything.
Crossing from new Moon to first-quarter Moon, what do you see? Only a little smidgen. A crescent. It’s called a waxing crescent Moon, because it grows thicker every day. And just before new Moon, we get a waning crescent. These crescents face opposite directions as the Moon shrinks and then grows again. Between first-quarter and full Moon we have something called waxing gibbous. It’s a pretty awkward looking phase, and is almost never drawn by artists, even though half the time we ever see the Moon it’s in a gibbous phase—not quite full, not quite a quarter Moon.
5 × 10 19 molecules per cubic centimeter is likely higher than you thought. But let’s look at our best laboratory vacuums. We do pretty well today, bringing the density down to about 100 molecules per cubic centimeter. How about interplanetary space? The solar wind at Earth’s distance from the Sun has about 10 protons per cubic centimeter. When I talk about density here, I’m referencing the number of molecules, atoms, or free particles that compose the gas. How about interstellar space, between the stars?
Welcome to the Universe: An Astrophysical Tour by Neil deGrasse Tyson
by Anthony
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