UM-Bot Posted January 29, 2020 #1 Share Posted January 29, 2020 It is often suggested that alien life could have reached Earth on a comet, but what about the other way around ? https://www.unexplained-mysteries.com/news/334177/has-life-from-earth-spread-to-distant-worlds Link to comment Share on other sites More sharing options...
Nnicolette Posted January 29, 2020 #2 Share Posted January 29, 2020 (edited) Brand new? My class secretly had to write a paper favoring either evolution or creation in High school (20 years ago) and i wrote about this and got the highest score and it didnt even address the question of where life originated but i figure this much is pretty obvious... Edited January 29, 2020 by Nnicolette 1 Link to comment Share on other sites More sharing options...
flying squid Posted January 29, 2020 #3 Share Posted January 29, 2020 Well, we already spread tardigrades(water bears) on the Moon. Tardigrades: 'Water bears' stuck on the moon after crash https://www.bbc.com/news/newsbeat-49265125 Link to comment Share on other sites More sharing options...
Hazzard Posted January 29, 2020 #4 Share Posted January 29, 2020 (edited) sure, why not... Panspermia works both ways. Edited January 29, 2020 by Hazzard Link to comment Share on other sites More sharing options...
+joc Posted January 29, 2020 #5 Share Posted January 29, 2020 1 minute ago, Hazzard said: sure, why not. because we have only just barely....barely...broken interstellar space...could there be microbes on the Voyager? I don't know...probably. Would they survive in outer space? I don't think so. Check back in a couple hundred thousand years...we might know something by then. 2 Link to comment Share on other sites More sharing options...
Waspie_Dwarf Posted January 29, 2020 #6 Share Posted January 29, 2020 1 hour ago, Nnicolette said: Brand new? My class secretly had to write a paper favoring either evolution or creation in High school (20 years ago) and i wrote about this and got the highest score and it didnt even address the question of where life originated but i figure this much is pretty obvious... There is a big difference between a high school student's essay and a scientific paper which provides in depth factual and mathematical analysis. It's the difference between knowledge and guessing. 1 Link to comment Share on other sites More sharing options...
AllPossible Posted January 29, 2020 #7 Share Posted January 29, 2020 5 hours ago, Tuco's Gas said: Spot on, mate. Those astronomical distances are really mind numbing. To scale: if the sun is a beach ball size, the Earth is a golf ball about 40 feet away. And the nearest star, proxima centauri? It's is over 1400 miles away. Woah. Ya I think about distances to other stars & cant even begin to imagine. Then I think of galaxies distance to each other & I get a full blown headache Link to comment Share on other sites More sharing options...
Hazzard Posted January 30, 2020 #8 Share Posted January 30, 2020 16 hours ago, joc said: because we have only just barely....barely...broken interstellar space...could there be microbes on the Voyager? I don't know...probably. Would they survive in outer space? I don't think so. Check back in a couple hundred thousand years...we might know something by then. You are thinking about this all wrong. There has been life on Earth for billions of years. An asteroid impact back then could have thrown tons of materials (with life) into space ... plenty of time to reach another starsystem, and crash into a planet. Panspermia, dude! Link to comment Share on other sites More sharing options...
+joc Posted January 30, 2020 #9 Share Posted January 30, 2020 5 hours ago, Hazzard said: You are thinking about this all wrong. There has been life on Earth for billions of years. An asteroid impact back then could have thrown tons of materials (with life) into space ... plenty of time to reach another starsystem, and crash into a planet. Panspermia, dude! Actually...dude...no that didn't happen. How do I know that didn't happen you might ask. I know that didn't happen because Life happened on Earth as a result of an Established Atmosphere already being in place. With the atmosphere in place and the gravity of Earth being what it is...and was then as well...there is no chance an asteroid hit the Earth and blew Life up and out of the atmosphere. It takes a tremendous force to exit our atmosphere. No way blow back from an asteroid hitting the Earth would have that force. Thanks but Panspermia...not so much. Link to comment Share on other sites More sharing options...
Hazzard Posted January 30, 2020 #10 Share Posted January 30, 2020 (edited) 3 hours ago, joc said: Actually...dude...no that didn't happen. How do I know that didn't happen you might ask. I know that didn't happen because Life happened on Earth as a result of an Established Atmosphere already being in place. With the atmosphere in place and the gravity of Earth being what it is...and was then as well...there is no chance an asteroid hit the Earth and blew Life up and out of the atmosphere. It takes a tremendous force to exit our atmosphere. No way blow back from an asteroid hitting the Earth would have that force. Thanks but Panspermia...not so much. Would you like to hang up and try again? The new study holds that the Chicxulub impact also launched 70 billion kilograms of rock into space... https://www.history.com/news/dinosaur-asteroid-may-have-sent-life-into-space Very welcome, dude. Edited January 30, 2020 by Hazzard Link to comment Share on other sites More sharing options...
+joc Posted January 30, 2020 #11 Share Posted January 30, 2020 20 minutes ago, Hazzard said: Would you like to hang up and try again? The new study holds that the Chicxulub impact also launched 70 billion kilograms of rock into space... https://www.history.com/news/dinosaur-asteroid-may-have-sent-life-into-space Very welcome, dude. I think that is an unproven theory. But thanks. I'll go with what I said. Link to comment Share on other sites More sharing options...
Hazzard Posted January 30, 2020 #12 Share Posted January 30, 2020 5 minutes ago, joc said: I think that is an unproven theory. But thanks. I'll go with what I said. Of course its unproven that it actually sent rocks from Earth seeded with life to other planets. But I dont se anyone protesting the fact that a meteor can eject tons of material in to space...with our atmosphere as it were. Link to comment Share on other sites More sharing options...
+joc Posted January 30, 2020 #13 Share Posted January 30, 2020 1 hour ago, Hazzard said: Of course its unproven that it actually sent rocks from Earth seeded with life to other planets. But I dont se anyone protesting the fact that a meteor can eject tons of material in to space...with our atmosphere as it were. I am protesting it. Didn't happen. 1 Link to comment Share on other sites More sharing options...
+joc Posted January 30, 2020 #14 Share Posted January 30, 2020 I will concur that it is a possibility that debris was launched into outer space by the asteroid you speak of. I will also concur that it is possible that some microbes did Escape Earth's atmosphere. We don't actually know that happened but it is a possibility. So I will give you that! Happy? :-) Link to comment Share on other sites More sharing options...
MissJatti Posted February 18, 2020 #15 Share Posted February 18, 2020 I had a dream once, where human from a far distant past, went to space, and their descendants recently visit Earth, there body has change/evolved, and look like grey Aliens today. Link to comment Share on other sites More sharing options...
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