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will-sirius-b-explode-as-a-type-ia-supernova https://www.astronomy.com/issues/2009/ 2009 Issue | Astronomy.com https://www.astronomy.com/uploads/2025/02/ASY-SK0325_04.png InStock USD 1.00 1.00 stars article ASY 2025-03-11 2025-03-24 159202
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2009

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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Sirius A and B
Stars

Will Sirius B explode as a type Ia supernova?

The Moon rises over mountains in Utah. Credit: NASA/Bill Dunford.
Science, The Moon

Why does the Moon look so large sometimes as it rises on the horizon?

Observing

Take the Ghost Hunt challenge

Science

Have astronomers seen massive young clusters like the Milky Way’s Arches Cluster in other spiral galaxies?

Observing

Long views of Mars and Saturn

Solar System

Ask Astro web extra: Our Sun appears yellow, but the sky isn’t. Why?

Science

What’s that meteorite?

Science

Bob Berman’s Strange Universe: Why is Neptune so ugly?

Astrophotography, Observing, Observing Basics

Glenn Chaple’s Observing Basics: Astroimaging 101

Stars

Is it true that there are more stars in the universe than there are grains of sand on Earth? How could one calculate such figures?

Observing

Name that crater

Exoplanets

Watch exoplanet HD 189733b in action

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