Cosmic Collisions Josh Barnes. Stellar Collision.
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Transcript of Cosmic Collisions Josh Barnes. Stellar Collision.
![Page 1: Cosmic Collisions Josh Barnes. Stellar Collision.](https://reader035.fdocuments.us/reader035/viewer/2022062320/56649d5d5503460f94a3ceb9/html5/thumbnails/1.jpg)
Cosmic Collisions
Josh Barnes
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Stellar Collision
![Page 3: Cosmic Collisions Josh Barnes. Stellar Collision.](https://reader035.fdocuments.us/reader035/viewer/2022062320/56649d5d5503460f94a3ceb9/html5/thumbnails/3.jpg)
A collision between the Sun and another star would take a few hours
Afterwards, the Solar System would be a “disaster area”
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What is the chance that the Sun will ever collide with another star?
One in four billion.
.
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What are chances that the Sun or Earth will ever collide with a Black Hole?
Far lower still.
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But …in some parts of the Galaxy, the odds of collisions are much higher.
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Galaxy Collisions
The Milky Way is now swallowing a small galaxy, the Sagittarius dwarf.
In a few billion years the Milky Way will collide with our larger neighbor, the
Andromeda galaxy
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”The Mice'' are in the middle of a collision that will last 300 million years.
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The Mice at Play
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How Dangerous are Galactic Collisions?
mostly harmless, unless...
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….. the galaxies contain supermassive black holes.
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Conclusion:
Don’t Panic