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Astronomy

Astronomy

May 2020

The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in a user-friendly style that's perfect for astronomers at any level.

国家:
United States
语言:
English
出版商:
Kalmbach Publishing Co. - Magazines
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12 期号

本期

2
galaxies, the big bang, and existence

When I talked with my friend Dan Hooper at Fermilab a few months ago, we decided that it was high time to do a “state-of-the-art” story on where we stand with dark matter. When Dan started writing the story, however, he evolved it into a summary of a much bigger dilemma: “Holes” in the Big Bang theory of the origin of the universe are increasingly leaving some astronomers unsettled. So his story, “Is the Big Bang in crisis?” describes the problems astronomers must yet overcome. When the universe began to assemble matter, it preferred to lump it into galaxies — huge clouds and wheels of stars, gas, and dust. As I was growing up — when we weren’t even sure that the Big Bang was the correct model of the universe…

1
astronomy

Editor David J. Eicher Design Director LuAnn Williams Belter EDITORIAL Senior Editor Richard Talcott Production Editor Elisa R. Neckar Senior Associate Editor Alison Klesman Associate Editor Jake Parks Copy Editor McLean Bennett Editorial Assistant Hailey McLaughlin ART Contributing Design Director Elizabeth Weber Illustrator Roen Kelly Production Specialist Jodi Jeranek CONTRIBUTING EDITORS Michael E. Bakich, Bob Berman, Adam Block, Glenn F. Chaple Jr., Martin George, Tony Hallas, Phil Harrington, Korey Haynes, Jeff Hester, Alister Ling, Stephen James O’Meara, Martin Ratcliffe, Raymond Shubinski SCIENCE GROUP Executive Editor Becky Lang Design Director Dan Bishop EDITORIAL ADVISORY BOARD Buzz Aldrin, Marcia Bartusiak, Jim Bell, Timothy Ferris, Alex Filippenko, Adam Frank, John S. Gallagher lll, Daniel W. E. Green, William K. Hartmann, Paul Hodge, Edward Kolb, Stephen P. Maran, Brian May, S. Alan Stern, James Trefil Kalmbach Media Chief Executive Officer Dan Hickey Senior Vice President, Finance Christine Metcalf Senior Vice President, Consumer Marketing Nicole McGuire Vice President, Content…

2
astro letters

Remembering 2019 Your January issue was spectacular. The “Top 10 space stories of 2019” shows what was accomplished this past year. The overload of information is overwhelming, but the article on black holes took my breath away. In his editor’s note, David Eicher masterfully expresses the death and birth of stars as the grandest recycling program. Little did I know what lurks behind the beautiful “like a diamond in the sky” stars at night. But the most exhilarating story was in Quantum Gravity. It covered the mighty super-Earth exoplanet, K2-18 b, and its signs of habitability. I’m looking forward to another astronomical year! —Shobha Kaicker, Mississauga, Ontario Forever teaching Each month I look forward to receiving Astronomy. I had the wonderful experience of teaching high school astronomy for the final six years of my 35-year…

1
anatomy of a cosmic swan

The Omega Nebula, also called the Swan Nebula, is a massive star-forming region about 5,000 light-years away. Hidden within its opaque, dusty clouds are more than 100 newly formed stars as well as clues to the region’s past, including how the nebula itself formed over time. Using the Stratospheric Observatory for Infrared Astronomy, or SOFIA, astronomers have peered deeper into the region than ever before to discover nine new massive protostars — collapsing sections of gas and dust that will soon ignite into suns. SOFIA’s observations also show that different areas of the nebula have different ages. Rather than forming all at once or sequentially from top to bottom, the central region of the nebula formed first, followed by the northern portion, while the southern part of the nebula is youngest.…

1
hot bytes

NEW NAME The Large Synoptic Survey Telescope, under construction on Cerro Pachón, Chile, is now called the National Science Foundation Vera C. Rubin Observatory — the first national U.S. observatory named for a woman. TWIN SUNS On January 6, researchers announced that NASA’s TESS planet-hunting spacecraft had spotted its first planet with two suns. The world, called TOI 1338 b, orbits its binary stars every 93 to 95 days. BIG SOLO In April 2019, LIGO spotted the secondever gravitational wave signal generated by a binary neutron star merger. It is the first confirmed event seen with only one gravitational wave detector, LIGO Livingston. NATIONAL SCIENCE FOUNDATION/LIGO/SONOMA STATE UNIVERSITY/A. SIMONNET…

2
found: crater from 790,000-year-old asteroid strike

The blinding flash of light came first, followed by a shock wave and massive earthquake. Only later did the hailstorm of black, glassy debris begin, a rocky rain that fell on 10 percent of Earth’s surface. That’s the scene that followed a massive asteroid impact 790,000 years ago. The rocky remains it scattered, called tektites, have been found from Asia to Antarctica. For decades, scientists have searched for the elusive resting place of the impactor. And now, they think they’ve found it. ELUSIVE CRATER A report published January 21 in the Proceedings of the National Academy of Sciences says that the meteorite likely struck in the Bolaven Plateau in southern Laos, carving a 10.5-by-8-mile (17 by 13 kilometers) crater that’s now covered by an ancient lava flow. After identifying the potential impact site…