Exploration of Halley’s Comet


Book Description

The 1985/86 apparition of Halley's Comet turned out to be the most important apparition of a comet ever. It provided a worldwide science community with a wealth of exciting new discoveries, the most remarkable of which was undoubtedly the first image of a cometary nucleus. Halley's Comet is the brightest periodic comet, and the most famous of the 750 known comets. With its 76-year period, its recent appearance was truly a "once-in-a-lifetime" observational opportunity. The 1985/86 apparition was the thirtieth consecutive recorded apparition. Five apparitions ago, the English astronomer Edmond Halley discovered the periodicity of "his" comet and correctly predicted its return in 1758, a triumph for science best appreciated in the context of contemporary views, or rather fears, about comets at that time. The increasingly rapid progress in technological development is very much apparent when one compares the dominant tools for cometary research during Halley's next three apparitions: in 1835 studies were made based on drawings ofthe comet; in 1910 photographic plates were used; while in March 1986 an armada of six spacecraft from four space agencies approached the comet and carried out in situ measurements, 1 AU from the Earth. In 1910, nobody could have dreamed that this was possible, and today it is equally difficult to anticipate what scientists will be able to achieve in 2061.




Halley's Comet, 1910


Book Description

Stories of people and their activities in response to the comet's presence. A slide show of humanity seen through the "magic lantern" of the comet's 1910 apparition.




Halley's Comet


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Her Name, Titanic


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The sailing, sinking and discovery of the Titanic on the ocean floor.




Nevada Place Names


Book Description

Author and researcher Helen Carlson spent almost fourteen years searching for the origins of Nevada’s place names, using the maps of explorers, miners, government surveyors, and city planners and poring through historical accounts, archival documents, county records, and newspaper files. The result of her labors is Nevada Place Names, a fascinating mixture of history spiced with folklore, legend, and obscure facts. Out of print for some years, the book was reprinted in 1999.




Earth-Shattering


Book Description

A heart-pumping exploration of the biggest explosions in history, from the Big Bang to mysterious activity on Earth and everything in between The overwhelming majority of celestial space is inactive and will remain forever unruffled. Similarly, more than 90 percent of the universe's 70 billion trillion suns had non-attention-getting births and are burning through their nuclear fuel in steady, predictable fashion. But when cosmic violence does unfold, it changes the very fabric of the universe, with mega-explosions and ripple effects that reach the near limits of human comprehension. From colliding galaxies to solar storms, and gamma ray bursts to space-and-time-warping upheavals, these moments are rare yet powerful, often unseen but consequentially felt. Likewise, here on Earth, existence as we know it is fragile, always vulnerable to hazards both natural and manufactured. As we've learned from textbooks and witnessed in Hollywood blockbusters, existential threats such as biological disasters, asteroid impacts, and climate upheavals have the all-too-real power to instantaneously transform our routine-centered lives into total chaos, or much worse. While we might be helpless to stop these catastrophes-whether they originate on our own planet or in the farthest reaches of space-the science behind such cataclysmic forces is as fascinating as their results can be devastating. In Earth-Shattering, astronomy writer Bob Berman guides us through an epic, all-inclusive investigation into these instances of violence both mammoth and microscopic. From the sudden creation of dazzling "new stars" to the furiously explosive birth of our moon, from the uncomfortable truth about ultra-high-energy cosmic rays bombarding us to the incredible ways in which humanity has harnessed cataclysmic energy for its gain, Berman masterfully synthesizes some of our worst fears into an astonishing portrait of the universe that promises to transform the way we look at the world(s) around us. In the spirit of Neil deGrasse Tyson and Carlo Rovelli, what emerges is a rollicking, profound, and even humbling exploration of all the things that can go bump in the night.




On Or about December 1910


Book Description

Peter Stansky paints a picture of the changing world in which the Bloomsbury set moved as the watershed to a new and more open society where for example E.M. Forster could write about love between men, and new artforms were in full bloom.




Asimov's Guide to Halley's Comet


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Seven Wonders of Asteroids, Comets, and Meteors


Book Description

From earliest times, humans have wondered about the sky above them and have studied all visible objects. People began to identify differences between stars and planets, and as technology advanced with telescopes and space probes, they sought deeper understanding of the millions of bits of debris rocketing through the solar system. Scientists determined that most of these objects are left over from the creation of the planets and their moons. They classified these leftovers into categories such as asteroids, comets, and meteors. In this book, we'll explore seven wonders of asteroids, comets, and meteors. Ceres is a huge mountain-sized asteroid that orbits with other asteroids between Mars and Jupiter. Other marvels include Ganymede, the largest asteroid in the group called Earthgrazers or Near-Earth Objects, and Halley's comet, a ball of ice, that passes Earth every seventy-five or so years. We'll also explore the amazing impact that space debris can have on planets and moons. The Borealis Basin, a wondrous crater more than 5,000 miles across, formed when an asteroid collided with Mars in the ancient past. Then we will travel to the far-off Kuiper belt, where as many as 200 million icy bodies orbit, and wonder at the mystery of planetlike objects, such as Pluto and Charon. Finally, we’ll can experience a space wonder firsthand by standing outside on a night in August to watch the spectacular Perseid meteor shower fill the sky.