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Sky & Telescope Magazine

Sky & Telescope December 2008

FEATURED ARTICLES Titan: Earth in Deep Freeze Saturn's largest moon has remarkably Earth-like mountains, lakes, and dunes — yet their compositions couldn't be more different.By Jason Barnes The Great Total Eclipse of 2009 The century's longest solar eclipse sweeps across China and the Pacific next July 22nd.By Fred Espenak &…

Beyond the Printed Page

Amateur Asteroid Discoveries

Amateur Paul Mortfield shares his experiences looking for asteroids, variable stars, and other changes in the night sky. He describes his techniques in the December issue of S&T.

Sky & Telescope Magazine

Sky & Telescope November 2008

FEATURED ARTICLES Totality 2008: First Look Reports from far-flung expeditions by those lucky enough to be within the shadow of the Moon.By Sean Walker X Rays Mark the Spot For the first time ever, astronomers were able to catch a supernova in the act of exploding.By Alicia Soderberg Building Planets…

Sky & Telescope Magazine

Sky & Telescope October 2008

FEATURED ARTICLES Fixing Hubble One Last Time The beloved space observatory is due for a final service call by astronauts. If all goes well, Hubble will be the best it has ever been.By J. Chris Blades A Martian Wonderland Scientists are racing to learn as much as they can with…

Ruben Garcia

Beyond the Printed Page

How To Identify Stony Meteorites in the Field

Ruben Garcia searches for meteorites with a meteorite cane.Ruben GarciaMeteorite identification in the field is one of the most difficult things for an aspiring meteorite hunter to learn. The skill is most certainly an acquired one. But once that skill is learned, a good meteorite hunter can easily spot a…

Iron meteorite with regmagylpts

Beyond the Printed Page

Surface Characteristics of Iron Meteorites

This iron meteorite was seen to fall in the Sikhote-Alin Mountains in eastern Russia in 1947. Even though it was picked up years after the fall and has started to oxidize, it still shows well-formed thumbprints (regmagylpts) and some remaining fusion crust.Geoffrey NotkinIron meteorites are generally easier to identify than…

Sky & Telescope Magazine

Sky & Telescope September 2008

FEATURED ARTICLES Planetary Peculiarities Intriguing discoveries keep on coming from the rapidly expanding universe of extrasolar planets. By Ken Croswell The Coming Giant Sky Patrols What will it mean when machines watch everything to 24th magnitude? For one thing: new opportunities for amateur science under the stars. By Peter Jedicke…

Peter Smith with 3D glasses

Beyond the Printed Page

Phoenix: Behind the Scenes

With the future of Martian exploration riding on NASA's Phoenix lander, mission scientists still find time to enjoy the experience.

LSST Concept

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Astronomical Sky Surveys

An artist's concept of the 8.4-meter Large Synoptic Survey Telescope (LSST), which should being scanning the sky in 2016.LSST Corp.Astronomers are scanning the sky with a variety of programs that collect gigabytes of data each night — and more are coming. The following links will take you were you can…

Sky & Telescope Magazine

Sky & Telescope August 2008

FEATURED ARTICLES The Quest for Dark Matter Astrophysicists know where it is but not what it is. To find out, they're trying to catch the elusive stuff in the laboratory.By Richard Panek Solar Eclipse over Eurasia and a Partial Lunar Eclipse More than a billion people will be in the…

Sky & Telescope Magazine

Sky & Telescope July 2008

FEATURED ARTICLES Tuning In to the Universe Combing radio telescopes will tackle big questions like the origin of life and the nature of space and time. By Joseph Lazio, Michael Kramer, and Bryan Gaensler Tiny Planets on Jupiter's Stage Jupiter's moons and their shadows perform dramatic telescope acts almost every…

Beyond the Printed Page

Watch the Sky From Chile

High above the clouds (and most of the Earth's atmosphere), from 19,000 feet (5,900 meters), the southern sky reveals its true majestic glory. Watch as the heavens rotate above the Chajnantor plateau high in the Chilean Atacama Desert.

Sky & Telescope Magazine

Sky & Telescope June 2008

FEATURED ARTICLES A Marvelous Midsummer Night This year, northerns' shortest nights are packed with planetary action.By Fred Schaaf NASA's New Gamma-Ray Trailblazer A soon-to-be-launched satellite promises to provide our best look at the most powerful beacons in the universe.By Robert Naeye How to Hunt for Supernova Fossils in the Milky…

Sky & Telescope Magazine

Sky & Telescope May 2008

FEATURED ARTICLES Reunion with Mercury January's flyby of this fire-and-ice world was the first in more than three decades.By J. Kelly Beatty To the Point with mySKY Enjoy your own personalized planetarium show under a starry sky with this clever bit of electronic wizardry from Meade. By Dennis di Cicco…

All-sky map of microwave background

Beyond the Printed Page

A New Day in Precision Cosmology

The date of the Big Bang? The amount of dark matter? The nature of cosmic inflation? These things and more are refined by new results from the WMAP cosmology probe. Here's a full roundup.

Beyond the Printed Page

Largest Optical Telescopes

Largest Optical Telescopes of Today & Tomorrow Name and location Primary-mirror aperture (meters) European Extremely Large Telescope (proposed) 42 Thirty Meter Telescope (proposed) 30 Giant Magellan Telescope (proposed) Cerro Las Campanas, Chile 24.5 Gran Telescopio Canarias (GTC) La Palma, Canary Islands 10.4 Keck Telescopes Mauna Kea, Hawaii 10.0 (×2) Southern…

Adaptive Optics

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The Challenge of Adaptive Optics

Adaptive-optics systems aim to improve the resolution of astronomical observations by compensating for the effects of air turbulence.

Keck Observatory

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Stars and Paradise

The twin 10-meter telescopes of Keck Observatory are among the highlights atop Mauna Kea, Hawaii. To the left is the Japanese Subaru Observatory.W. M. Keck ObservatoryWhen most people think of Hawaii, they ponder volcanoes, luaus, hula dancers, and pineapples. But Hawaii also sports one of Earth's best vacation spots for…

2008 Eclipse

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The 2008 Eclipse and the Saros Cycle

The August 1, 2008, total eclipse is similar to a couple of significant past eclipses. Here's why.

Sky & Telescope Magazine

Inside the November 2007 Issue

PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum No Laughing Matter By Richard Tresch Fienberg Skyscape Short-Lived Sunspot By Jerry Lodriguss Mission Update By Jonathan McDowell 50 & 25 Years Ago By Leif J. Robinson The Great Mars Chase of 1907 A century…

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