TNOs: could some have formed elsewhere? |
TNOs: could some have formed elsewhere? |
Mar 28 2006, 05:35 PM
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
I got a question today for Planetary Radio Q&A that I couldn't answer, being pretty ignorant about solar system formation research. Can anybody help?
QUOTE We know from the metal composition of our solar system that the Sun is at least a second or third generation star. It made me wonder if it was possible that some of the comets or other KBOs that we witness might be from the Sun's predecessor star or stars. If not, could such bodies exist a bit further out? I should think it would be fantastic to be able to investigate such objects. --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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May 20 2006, 08:25 PM
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
My comment was about astronomy, as in studying celestial phenomena from afar, not about planetary probes to places where there has already been some reconnaissance on which to base mission objectives. In that case the oil exploration analogy applies and I fully accept what you say. Even so, wherever this kind of selectivity is unavoidable we need to be continuously alert to the implications of the observational selection thus introduced. Good lateral thinking and an open mind are needed to avoid the risk of circularity and the missing of potentially fruitful lines of inquiry. Thank goodness we sometimes get surprises despite the selectivity of our search!
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