Another Interstellar Asteroid? 2015 BZ509 Update 05/21/2018 | Summary and Q&A

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May 22, 2018
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John Michael Godier
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Another Interstellar Asteroid? 2015 BZ509 Update 05/21/2018

TL;DR

Our solar system is not isolated, but actively exchanges material with other star systems, as seen in the discovery of interstellar asteroids such as Oumuamua and 2015 BZ509.

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Questions & Answers

Q: What is the significance of the discovery of interstellar asteroids in our solar system?

The discovery of interstellar asteroids suggests that our solar system actively exchanges material with other star systems, providing a unique opportunity to study and understand the dynamics of the Milky Way Galaxy.

Q: How was the interstellar origin of asteroid 2015 BZ509 determined?

By analyzing its orbit and tracing it back in time, scientists concluded that asteroid 2015 BZ509 must be of interstellar origin, as its orbit has remained unchanged for 4.5 billion years.

Q: What are the peculiar characteristics of asteroid 2015 BZ509?

Asteroid 2015 BZ509 has a retrograde orbit, meaning it orbits in the opposite direction of most other objects in the solar system. It also shares the same speed and orbit as Jupiter, but in a retrograde manner.

Q: What does the presence of interstellar asteroids suggest about the abundance of such objects?

The discovery of interstellar asteroids like Oumuamua and 2015 BZ509 suggests that objects from outside our solar system are likely not rare, and that our solar system may serve as a geological sampling of the galaxy.

Summary & Key Takeaways

  • Our solar system is not isolated, but exchanges material with other star systems.

  • Asteroid 2015 BZ509, captured 4.5 billion years ago, may be of interstellar origin.

  • The asteroid has a retrograde orbit and orbits at the same speed and in the same orbit as Jupiter.

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