Astronomy October 2014

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
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US$ 42,99
12 Edições

nesta edição

5 minutos
from the editor

Separating fact and fiction There seem to be lots of barriers for young people getting interested in serious scientific subjects these days — at least in the United States, if not all over the world. For one thing, reality no longer seems as important to people as it once did. When I was young, real things carried much more weight than fantasies. Now, you can go outside and show some kids an aurora, brightly shining and shimmering in the sky, and have them excited for, well, about five minutes. And then, too often, it’s right back inside to turn on the Xbox 360 and interact with a meaningless virtual world. What does that accomplish in the end? Hey, I’m not against having fun, but there’s maybe just a little too much…

1 minutos
qg: quantum gravity

HOT BYTES >> TRENDING TO THE TOP X-RAY ENIGMA XMM-Newton observatory data revealed the same mysterious X-ray signal in 73 galaxy clusters; some astronomers say it could come from dark matter. COSMIC CHEM The Large Magellanic Cloud has a more diverse array of organic compounds called “polycyclic aromatic hydrocarbons” than the Milky Way does. ROCK REVEALED Scientists bounced radar off asteroid 2014 HQ124 on June 8 to create the best images yet of the 1,300-foot-long (400 meters) two-lobed object. SNAPSHOT: The greatest sky on Earth Chile’s Atacama Desert gave our group memories for a lifetime. Last May, a group consisting of Astronomy readers accompanied me on a tour of the Chilean desert for behind-the-scenes showings of the Very Large Telescope, the Atacama Large Millimeter/submillimeter Array radio telescope, and the Cerro Tololo Inter-American Observatory. As memorable as any of the observatory visits…

1 minutos
break through

Puff the magic Sun If Claude Monet had painted the Sun, it might have looked something like this Solar Dynamics Observatory (SDO) portrait. Astronomers used SDO and two other solar telescopes to capture a series of rapid eruptions at the base of the Sun’s million-degree outer atmosphere, or corona, over three days in January 2013. These energetic puffs arise from powerful jets (one of which appears at the Sun’s limb in this image) and solar flares. The puffs soon triggered a much larger, slowermoving coronal eruption that eventually spread ionized gas through interplanetary space. Researchers released these results June 23, 2014. SDO/UNIVERSITY OF ABERYSTWYTH…

5 minutos
strange universe

In the exact center We gaze into a universe of spheres, but we can’t view inside them. Eight years ago, this page explored celestial “interiors.” Now let’s go further, to the sole unique location possessed by every globe: the center. We’ll focus on the most important spheres in our lives. Start here at home. The topic first arose when we realized our planet is a ball. This wasn’t much of a leap since the Moon and the Sun are spheres; why not us too? By the fifth century B.C., our true ball shape was widely accepted in Greece. Almost immediately, Earth’s center became popularly regarded as the location of the underworld. After all, as one ventured deeper underground, temperatures rose. It didn’t seem pleasant down there. Oozing lava was red-hot, lending more…

8 minutos
astro news

RESIST GRAVITY. A June 5 Nature paper describes a study of 76 galaxies and their central supermassive black holes and suggests that the magnetic fields at the galaxies’ cores are so powerful that they can affect the gravitational pull of material. SCIENTISTS FIND POSSIBLE WAVES IN TITAN SEA Since arriving at the Saturn system in 2004, the Cassini spacecraft has collected myriad observations that the planet’s largest moon, Titan, hosts a global weather system. While Earth’s is based on a water cycle, Titan’s centers around a methane cycle. Cassini has spied clouds, lakes and rivers, and even surface shoreline changes. Now scientists say they may have seen short-lived structures atop a sea — surface waves, bubbles, or perhaps floating solids. Jason Hofgartner of Cornell University and colleagues compared radar images from eight Cassini…

2 minutos
secret sky

The Orionids’ surprising afterglow For several nights centered on October 21, 2014, skywatchers around the globe will have an opportunity to watch fragments of Halley’s Comet burn up as “shooting stars” during the Orionid meteor shower. To see pieces of a celestial icon rip into our atmosphere and then (in the snap of a finger) go down in blazes of glory is wonder enough. For some Orionids, though, that “death streak” may not be the only eye-catching phenomenon related to the event. It could be the precursor to a fascinating spectacle in the upper atmosphere that, unlike the meteor, can last minutes. Attending the wake Few shower meteors are as fast as the Orionids. They zip through Earth’s atmosphere at about 40 miles per second (66 km/s), ensuring that the comet’s tiny particles…