Astronomy - April 2016 (gnv64) torrent

Astronomy - April 2016
English | 80 pages | True PDF | 18.6 mb

FEATURES
22 COVER STORY
Inside the historic mission to Europa
Ater decades of canceled missions and false starts, NASA is finally headed for Carl Sagan’s dream destination. ERIC BETZ
28 New missions mine asteroid secrets
When Rosetta landed on a comet, the world held its breath. Now scientists are about to attempt an even more ambitious mission — twice. ELIZABETH TASKER
34 Ask Astro - Expansion explained.
36 The Sky this Month MARTIN RATCLIFFE AND ALISTER LING
38 StarDome and Path of the Planets RICHARD TALCOTT; ILLUSTRATIONS BY ROEN KELLY
44 Untangling the magnetic universe
his powerful but mysterious force plays a fundamental role in shaping galactic structure and allowing stars to form. YVETTE CENDES
50 Celebrating Stephen Hawking’s legacy
Scientists, astronauts, musicians, and the public will come to the Canary Islands this summer for a tribute to the renowned physicist. DAVID J. EICHER
56 How to image Jupiter
Longtime planetary photographer CHRISTOPHER GO guides you step by step through the process of imaging this gas giant.
61 Where is amateur astronomy heading?
Today’s trends will lead amateur astronomy to a better and more popular future. KEVIN RITSCHEL AND MARIA GRUSAUSKAS
64 Sky-Watcher USA’s hot new scope tested
Combine 5 inches of lightgathering power with easy portability, and you have a winner of a scope. RAYMOND SHUBINSKI
COLUMNS
10 Strange Universe BOB BERMAN
14 For Your Consideration JEFF HESTER
18 Secret Sky STEPHEN JAMES O’MEARA
20 Observing Basics GLENN CHAPLE
66 Astro Sketching ERIKA RIX
68 Cosmic Imaging ADAM BLOCK
QUANTUM GRAVITY
Snapshot 9
Astro News 12
IN EVERY ISSUE
From the Editor 6
Letters 10, 18, 20
New Products 67
Advertiser Index 70
Reader Gallery 72
Breakthrough 74