Astronomy June 2015

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.

United States
Kalmbach Publishing Co. - Magazines
Ler Mais
US$ 42,99
12 Edições

nesta edição

2 minutos
introducing columnist jeff hester

This month, we have the first of a long series of delights — the distinguished astronomer Jeff Hester begins a new monthly column, “For Your Consideration” (p. 10). Hester will keep us apprised of all manner of thoughts and interesting notions from the science of astronomy and cosmology, in a very sharp and witty way. If you don’t know him, here’s an introduction: After earning his doctorate in space physics and astronomy from Rice University, Hester moved west to the California Institute of Technology. There he joined the team responsible for the Hubble Space Telescope Wide-Field and Planetary Camera (WFPC). So began a career that placed Hester in a frontrow seat for some of the most extraordinary events in the history of science. Shortly after the launch of Hubble, Hester found himself sitting…

2 minutos
how large is the universe?

EVERYTHING YOU NEED TO KNOW ABOUT THE UNIVERSE THIS MONTH . . . HOT BYTES >> TRENDING TO THE TOP COMET WATCH Rosetta passed within 4 miles (6 kilometers) of Comet 67P/Churyumov-Gerasimenko, giving scientists their best view yet. #YEAROFPLUTO NASA released New Horizon’s latest longdistance look at Pluto to celebrate the birthday of the world’s finder, Clyde Tombaugh. THE PERFECT RING Hubble shots of Beta Pictoris, the only stellar debris disk with an imaged giant planet, saw little change in 15 years, implying near uniformity. The concept of the size of the universe has taken huge strides forward in just the last few years. There was a time not long ago when astrophysicists didn’t know how big the cosmos is. The Big Bang theory reminds us that once the universe was small. We know the fastest any radiation can…

4 minutos
our roots in the cosmos  

Editor’s note: With this issue we welcome Jeff Hester, who is well known for his work with the Hubble Space Telescope. His credits include Hubble’s most famous image, “The Pillars of Creation.” He now works as a certified professional coach, keynote speaker, and thinking partner, helping people find success in changing times. In this new monthly column, he will share his thoughts on just what makes it so remarkable to be human. Count yourself lucky! Not everyone can say they were present at the moment humankind’s conception of itself changed. But you can. Since the dawn of history, humans have built whole civilizations around myths and fables linking our existence to a mystical celestial realm. And yet in the end it took less than a lifetime to overturn that whole framework and…

4 minutos
laser crime and punishment

Green lasers may have replaced telescopes as the most common item in the astro toolkit. Their narrow beams are perfect for pointing out stars. But there’s a dark side. Three years ago, a Northern Californian named Sergio Rodriguez kept aiming a highpowered laser at a police helicopter. Result: He was recently sentenced to 14 years in prison. Of the 17,725 reported U.S. laser strike incidents from 2005 through 2013, just 134 arrests have been made, resulting in 80 convictions. But enforcement is increasing. Let’s rewind to the beginning. In 1957, Columbia University doctoral student Gordon Gould figured out a way to make light waves march in unison, a possibility predicted a half-century earlier by Albert Einstein. Two years later, he coined that catchy word in his paper: “The LASER, Light Amplification by Stimulated Emission of…

2 minutos
from our inbox

What’s your sign? I enjoyed reading Stephen James O’Meara’s column in the March issue (p. 16). I am one of the Sagittarians born under Ophiuchus (December 16). I had been unaware of the distinction and had always considered myself the former. Although I never placed any credence in the pseudo-science of astrology, there were often believers I’d meet through the years who would ask, “What’s your sign?” As a mailman for 33 years, I would playfully answer, “My sign is ‘Beware of Dog.’ ” More recently, I like to tease astrologers by answering “Ophiuchus.” Usually they’ve never heard of it, and I get to explain what that means. Thanks to you, I can show them a copy of your column, too! — Gary Cronin, West Babylon, New York We welcome your comments…

2 minutos
radio-faint galaxy surprises by stopping star formation 

LHC REBOOT. The Large Hadron Collider (LHC) had a minor short circuit that delayed its restart in March. Several years of upgrades will soon let the accelerator hit energies never before seen, refining the Higgs boson and probing dark matter. Scientists using the Very Large Array (VLA) in New Mexico are discovering that a process that can terminate star-formation activity in rare radio-bright galaxies also occurs in their less extreme brethren. For years, radio astronomers had observed powerful jets of material from supermassive black holes at the center of radio-bright galaxies plowing through the surrounding gas and squelching star formation. But no one knew if the same situation was occurring in more common galaxies as they stopped actively producing stars. To find out, a team of astronomers led by Chris Harrison of Durham…