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SETI@home Science :
Paul Horowitz talk at Google
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Dr Grey Send message Joined: 27 May 99 Posts: 154 Credit: 104,147,344 RAC: 21 |
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Gordon Lowe Send message Joined: 5 Nov 00 Posts: 12094 Credit: 6,317,865 RAC: 0 |
That was good, thanks for posting the link. It took until the last question in the Q&A for SETI@Home to get mentioned, though. ;~) The mind is a weird and mysterious place |
Dr Grey Send message Joined: 27 May 99 Posts: 154 Credit: 104,147,344 RAC: 21 |
That was good, thanks for posting the link. It took until the last question in the Q&A for SETI@Home to get mentioned, though. ;~) Yes, that made me wince a bit too |
Michael Watson Send message Joined: 7 Feb 08 Posts: 1385 Credit: 2,098,506 RAC: 5 |
Yes, and the questioner seemed in real doubt that SETI@Home even still existed! Hmmm. |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
I question his number of stars within 1000 lightyears of Earth and most assuredly the prevalence of "Earth-like " planets. To my mind we have not yet found a one.--What do we need to see to really say "Earth-like" |
rob smith Send message Joined: 7 Mar 03 Posts: 22220 Credit: 416,307,556 RAC: 380 |
My definition would be along the lines: Star of similar size and age to the sun Rocky Diameter between 0.75 and 1.5 earth Orbit 0.8-1.2 compared to earth. Some of those a probably a bit "tight", but its a starter for ten... Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
This is a good starter set. I would add a nearly circular orbit and the presence of water. We could then look and see if these candidates possessed about another dozen parameters as well. My point is that you cannot select one in-range parameter and call it an "Earth-like" planet while ignoring another important dozen or more necessary conditions to be truly "Earth-like" For our starter set--I don't think that we have as yet found a single one. They are probably out there but we need better surveillance capability. |
rob smith Send message Joined: 7 Mar 03 Posts: 22220 Credit: 416,307,556 RAC: 380 |
The conditions I set out would allow for free liquid water, and give a fair chance of there being a reasonable atmosphere for things to happen in. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
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