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Study suggests every star likely has planets.
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<blockquote data-quote="Janx" data-source="post: 5775968" data-attributes="member: 8835"><p>Once it enters the realm of detecting by means of something clever, i reckon all bets are off.</p><p></p><p>The problem I note, simply by way of magic super telescope with perfect vision, is that what we're looking at now is a picture of a given star as it WAS, not it's present.</p><p></p><p>In the case of alpha centauri, if they just started watching us with a nice new scope, they may have noticed the ISS, the biggest piece of manmade space thing around.</p><p></p><p>If they had a "watch Sol" project running for the last 10 years, they had a pretty good chance of noticing it. But the farther away they are, and technologically in sync with us, by the time they CAN watch our planet, we may have died out, or are simply looking at the dinosaur age.</p><p></p><p>Both parties have to be aligned at the right staggered amount of time to be doing detectable things AND watching for detectable things.</p><p></p><p></p><p>It's kind of like you deciding to watch for model rockets being shot off in your neighborhood sometime this year and me deciding to shoot off a model rocket in your neighborhood this year.</p><p></p><p>if I launch in January, and you get the idea to start looking in June, you will never see it.</p><p></p><p>If you start looking in February and get bored by August (species die off) and I finally finish building my kit and launch in September, you will never see it.</p><p></p><p>Your only hope is that you start, before I launch (acounting for time elapse of signal to recieve) and are able to continue watching daily until I actually launch.</p><p></p><p>replace launching rockets with "detectable thing". Then consider the travel time for signal which means what you see is VERY old information that may pre-date the actual civilization on the planet. Plus the fact that each planet's life may start and develop at slower or faster paces such that they may have missed the window to be watching or watchable.</p><p></p><p>The star trek method of actually visiting planets and dropping off monitoring systems is probably more practical to detect life than watching/listening at stars.</p></blockquote><p></p>
[QUOTE="Janx, post: 5775968, member: 8835"] Once it enters the realm of detecting by means of something clever, i reckon all bets are off. The problem I note, simply by way of magic super telescope with perfect vision, is that what we're looking at now is a picture of a given star as it WAS, not it's present. In the case of alpha centauri, if they just started watching us with a nice new scope, they may have noticed the ISS, the biggest piece of manmade space thing around. If they had a "watch Sol" project running for the last 10 years, they had a pretty good chance of noticing it. But the farther away they are, and technologically in sync with us, by the time they CAN watch our planet, we may have died out, or are simply looking at the dinosaur age. Both parties have to be aligned at the right staggered amount of time to be doing detectable things AND watching for detectable things. It's kind of like you deciding to watch for model rockets being shot off in your neighborhood sometime this year and me deciding to shoot off a model rocket in your neighborhood this year. if I launch in January, and you get the idea to start looking in June, you will never see it. If you start looking in February and get bored by August (species die off) and I finally finish building my kit and launch in September, you will never see it. Your only hope is that you start, before I launch (acounting for time elapse of signal to recieve) and are able to continue watching daily until I actually launch. replace launching rockets with "detectable thing". Then consider the travel time for signal which means what you see is VERY old information that may pre-date the actual civilization on the planet. Plus the fact that each planet's life may start and develop at slower or faster paces such that they may have missed the window to be watching or watchable. The star trek method of actually visiting planets and dropping off monitoring systems is probably more practical to detect life than watching/listening at stars. [/QUOTE]
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