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a-pair-of-planetary-conundrums https://www.astronomy.com/issues/2011/page/8/ 2011 Issue | Page 8 of 15 | Astronomy.com https://www.astronomy.com/uploads/2021/09/Pioneer-Venus.jpg InStock USD 1.00 1.00 science article ASY 2023-05-18 2011-06-27 41000
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2011

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.
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Science

A pair of planetary conundrums

Observing

Even more questions for a cloudy night

Science

Farewell, Brian

Galaxies

Do galaxies rotate clockwise or counterclockwise? Do all galaxies rotate in the same direction?

Science

Photos of recent comet flybys show their nuclei to be barbell-shaped rather than spherical. What are the forces or processes that produce this shape?

Observing

Sketching Hercules’ two clusters

Stars

A tale of two clusters

Deep-Sky Objects, Observing

A stellar summer planetary nebula

Exotic Objects, Solar System

Ask Astro: What are the chances of dark matter or a black hole ripping apart Earth?

Cosmology

How do astronomers know that the universe is 13.7 billion years old?

Science

When black is white

Science

The smell of space

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