Posted on 02/21/2006 8:26:19 PM PST by KevinDavis
I love your graphic!
I dunno, I looked at the various propectuses, and all of those stars look a wee bit hot for my tastes. I'd rather a planet than a star any day.
Thanks!! Since it is GW birhtday tomorrow, I figure what the heck...
I think you should keep using it!
Oops...
With current technology - I dunno... let's say ion propulsion - how long would it take to do a fly-by of another star system? Basically, just send a probe to take lots of data, then zip around it and coast back to earth? (Or not even come back, just send signals back...)
The Universe is vast. I am pretty sure there is life on other star systems. They likely will resemble life on Earth, not the freakish ones we see in movies.
It will be back around July 4th...
Your right with the current technology it would take a long time. However, with advances I say within the next 50 years, going to other star systems will be more feasible..
Heck most planets can be like Western Canada like we see in SG1 and Atlantis...
Oops I mis-stated the question.... not "when can we launch", but "how long would such a journey take (to get back interesting data)?"
Astronomer announces shortlist of stellar candidates for habitable worlds
EurekaAlert | 02/18/06 | Earl Lane
Posted on 02/18/2006 4:26:06 PM EST by KevinDavis
http://www.freerepublic.com/focus/f-news/1581281/posts
Looking for other Earths? Here’s a list
msnbc.com | 02/19/06 | Alan Boyle
Posted on 02/19/2006 3:10:25 PM EST by KevinDavis
http://www.freerepublic.com/focus/f-news/1581745/posts
Five Out of Five Researchers Agree: Earth's Solar System Special
SPACE.com | 31 March 2005 | Sara Goudarzi
Posted on 03/31/2005 7:27:51 PM EST by Heartlander
http://www.freerepublic.com/focus/f-news/1375038/posts
Typically, the most sought after characteristic of a planet is its habitability. A habitable planet has liquid water on its surface, explained Margaret Turnbull of the Carnegie Institute of Washington. Thus far, 90% of all detected alien planets have host stars that can flare and sterilize the surface of the planet. Furthermore, planets, which are that close to their host star, would be in a synchronous orbit. This means that only one side of the planet would face the host star and all potential water on that side would evaporate and go to its "dark" side.
Well the data will take years and years using traditional methods. I think we have some laser based communication system, it would take half of the time..
LOL
Great news. Since Don Brownlee isn't far from here, what about satellite-driven tidal forces, tectonic volcanism, and gas giant vacuum cleaners?
/ Devil's Advocacy
;-)
Our fastest probes might top out, being extremely generous, at 100,000 MPH. 1 light year is around 5.86 trillion miles, so our nearest stellar neighbor of Alpha Centauri would be 4.32 ly away or ~25 trillion miles.
If I calculated correctly, that works out to 1141 years for a one way trip....
Do we need to consider relativity? Isn't it travelling into the future at that speed, so back on earth we'd have to wait even longer?
That is why we need to develop FTL technology...
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