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when-galaxies-merge-what-happens-to-their-central-black-holes https://www.astronomy.com/tags/magazine/page/205/ Magazine | Page 205 of 282 | Astronomy.com https://www.astronomy.com/uploads/2021/09/july_2009_black_holes.jpg InStock USD 1.00 1.00 exotic-objects article ASY 2023-05-18 2009-05-26 45939
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Magazine

Exotic Objects

When galaxies merge, what happens to their central black holes?

Stars

David H. Levy’s Evening Stars: The Bard and astronomy

Observing

Astro Confidential web extra: Extending the conversations

The Moon

Observing Basics web extra: Explore an imperfect Moon

Science

In stellar magnitude estimates, why do larger numbers represent dimmer objects? Shouldn’t it be the other way around?

Galaxies

How do the bars in barred spirals form?

Observing

Free preview: Glenn Chaple’s Observing Basics, “An imperfect Moon”

Cosmology, Exotic Objects

Could large numbers of black holes account for much of the “dark matter” estimated to exist in our universe?

Solar System

Could the meteorite that formed the Hellas Basin on Mars have triggered the volcanic eruptions on the other side of the planet that created Olympus Mons?

Stars

Astro Confidential web extra: Extending the conversations

Observing

Astrocombing for exoplanets

Observing

Stephen James O’Meara’s Secret Sky: Fireballs from the Scorpion

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