June 1990
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 an easy-to-understand, user-friendly style that's perfect for astronomers at any level.
Features
Too Smooth: COBE’s Perfect Universe
The Cosmic Background Explorer confirmed a simple Big Bang but left the question of how galaxies formed unanswered.
The Case for Density Waves
Astronomers equipped with supercomputers have come up with strong evidence that density waves shape spiral galaxies.
The Magnetic Milky Way
New radio observations reveal magnetic field structures around the core of our galaxy.
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