SUNSET: 
Inside the August 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum Denying Doomsday By Richard Tresch Fienberg Letters News Notes A Galaxy Core's Shadow Play, Volcanic Vents on Mars?, and more . . . Mission Update By Jonathan McDowell 50 & 25 Years Ago By Leif…
Inside the July 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum Pluto on My Mind By Richard Tresch Fienberg Letters News Notes Catching Orion's Bullets, Ancient Volcanic Vents on Mars?, Earth's Temporary Moon, and more ... Mission Update By Jonathan McDowell 50 & 25 Years Ago…
Inside the June 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum Our Golden Opportunity By Richard Tresch Fienberg Letters News Notes Postcards from Mars and Jupiter, The Big Bright Galaxy You've Never Seen, and more ... Beyond the Printed Page: Phobos Transits Mars Beyond the Printed…
Simulating a Type Ia Supernova
In the July 2007 issue of Sky & Telescope (page 32), science writer David S. Stevenson describes some of the recent progress made by astronomers in figuring out what causes Type Ia supernovae. Most supernova explosions signal the deaths of short-lived massive stars, but Type Ia blasts come from old…
Inside the May 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum Around the World with S&T By Richard Tresch Fienberg Letters News Notes Dead Cataclysmics Unearthed, Seeking the Origins of Cosmic Rays, and more ... Mission Update By Jonathan McDowell 50 & 25 Years Ago By…
Images from Apogee's Alta U9000 CCD Camera
While processing the images Dennis di Cicco recorded during his review of the Apogee Alta U9000 CCD camera, I was most impressed by the high sensitivity of the KAF-09000 chip. The images presented here are some of my favorites. Each of these photographs were recorded through a 15 nanometer passband…
Transit of Luna
Click on image for a 2MB animation.NASAOn February 25th the Moon crossed the Sun in an unearthly annular eclipse — one that can never be seen from Earth. These ultraviolet images were taken by one of NASA’s two STEREO solar observatories, which were launched last October and are now watching…
Inside the April 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum The Other Side of the Story By Richard Tresch Fienberg News Notes Superduper Supernova, Titan's Sierras, The First Triple Quasar, and more . . . Mission Update By Jonathan McDowell 50 & 25 Years Ago…
Inside the March 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum Lost in Translation By Richard Tresch Fienberg Letters News Notes Flowing Water on Today's Mars? Hubble Confirms a Cosmic Jerk, and more . . . Mission Update By Jonathan McDowell 75, 50 & 25 Years…
Inside the Night Sky March/April 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Reflections: Got Stars? By J. Kelly Beatty The Sky Tonight March: Carnivores Rising The Great Bear, Lion, and Sea Serpent stalk upward together in the eastern sky. By Alan MacRobert The Sky Tonight April: Two Planets…
Using Digital Imagery to Detect Earth's Penumbra
With a little help, you can see the first hint of the Earth's shadow — the penumbra — on the Moon's surface. Here's what you need to know.
Inside the February 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum A Moving Experience By Richard Tresch Fienberg News Notes Good Times, Bad Times for Astronomy, Titan: Assembling the Puzzle, and more . . . Mission Update By Jonathan McDowell 50 & 25 Years Ago By…
A Killer Blast?
Click on image for a 1MB animated GIF.Brian Fields, Themis Athanassiadou, Scott Johnson, and NASA.A supernova popping off near Earth could spell big trouble for our biosphere. University of Illinois astronomer Brian Fields and two colleagues used a computer to simulate what would happen if a star 30 light-years away…
Inside the January 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum What Would George & Henri Do? By Richard Tresch Fienberg News Notes New Transiting Planet Candidates, Saturn's Ring Takes a Hit, Historic Supernova Linked to Remnant, and more . . . Mission Update By Jonathan…
Inside the Night Sky January/February 2007 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Reflections: Desperately Seeking Saturn By J. Kelly Beatty Your Letters The Sky Tonight January: Hello, Venus! Bright Venus climbs up from the glow of sunset, and Mercury joins it late in the month. By Alan MacRobert…
Inside the December 2006 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum What's in the Sky Tonight? By Richard Tresch Fienberg Letters News Notes When Galaxies Assembled, SMART 1's Grand Finale, Former "10th Planet" Formally Named, and more . . . Mission Update By Jonathan McDowell 75,…
The Hyades Movie
Click above to watch the stars of the Hyades Cluster separate from the unrelated stars in Taurus.Anthony Brown In 1997 scientists associated with the Hipparcos satellite published a 3-D map of stars in the Hyades cluster. It was the first time that the structure of a star cluster had ever…
Inside the November 2006 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum Pluto Doesn't Care By Richard Tresch Fienberg Letters News Notes A Trip Through a Star, Hot, Heavy, and Highly Eccentric, and more. . . Mission Update By Jonathan McDowell 50 & 25 Years Ago By…
Inside the Night Sky November/December 2006 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Reflections: Get the Sky Tonight 24/7 By J. Kelly Beatty Your Letters The Sky Tonight November: Water Constellations Between Fomalhaut in the south and Aldebaran in the east lies the Great Celestial Sea. By Alan MacRobert…
Inside the October 2006 Issue
PURCHASE PRINT ISSUE | PURCHASE DIGITAL ISSUE | DOWNLOAD BACK ISSUES | SUBSCRIBE TABLE OF CONTENTS Spectrum You Get What You Pay For By Richard Tresch Fienberg Letters News Notes Lakes on Titan!, Amateurs Catch an Asteroid Flyby, New Concept for Imaging Life-Bearing Planets, and more... Mission Update By Jonathan McDowell 50…