Rare Earth; how rare? (Introduction)
by David Turell 
, Thursday, January 12, 2012, 15:04 (4700 days ago) @ David Turell
Another discussion of habitable planets, concentrating on the tilt of the Earth and how that moderates temperature, along with the consideration that our unique moon keeps our tilt in place:
http://www.physorg.com/news/2012-01-loss-planetary-tilt-doom-alien.html
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- Rare Earth; how rare? -
David Turell,
2011-12-10, 21:35
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- Rare Earth; how rare? -
xeno6696,
2011-12-10, 22:04
- Rare Earth; how rare? -
David Turell,
2011-12-11, 00:49
- Rare Earth; how rare? -
xeno6696,
2011-12-11, 18:32
- Rare Earth; how rare? -
David Turell,
2011-12-12, 00:04
- Rare Earth; how rare? -
xeno6696,
2011-12-12, 00:53
- Rare Earth; how rare? -
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2011-12-12, 02:21
- Rare Earth; how rare? -
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2012-01-12, 15:04
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2015-08-27, 14:32
- Rare Earth; compared to others -
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2015-09-17, 14:08
- Rare Earth; compared to others -
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- Rare Earth; compared to others -
David Turell,
2016-02-26, 01:15
- Rare Earth; compared to others -
dhw,
2016-02-26, 13:16
- Rare Earth; compared to others - David Turell, 2016-02-26, 15:05
- Rare Earth; compared to others -
dhw,
2016-02-27, 12:36
- Rare Earth; compared to others -
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2016-02-27, 14:52
- Rare Earth; compared to others -
dhw,
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2016-02-28, 15:32
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2016-04-17, 23:38
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2016-05-20, 23:11
- Rare Earth: our protective magnetic field -
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2016-06-02, 02:43
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2016-07-20, 22:09
- Rare Earth: once again, how rare? -
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2016-09-02, 01:00
- Rare Earth: once again, how rare? -
David Turell,
2016-09-19, 18:17
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2016-10-09, 01:27
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2017-02-21, 15:58
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- Rare Earth:possible evolution of plate tectonics -
dhw,
2017-03-01, 13:27
- Rare Earth:possible evolution of plate tectonics -
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2017-03-01, 18:33
- Rare Earth: our iron isotope ratios differ from others - David Turell, 2017-03-03, 15:02
- Rare Earth:possible evolution of plate tectonics -
David Turell,
2017-03-01, 18:33
- Rare Earth:possible evolution of plate tectonics -
dhw,
2017-03-01, 13:27
- Rare Earth:possible evolution of plate tectonics -
David Turell,
2017-02-28, 16:30
- Rare Earth: early Earth warm not frozen - David Turell, 2018-08-22, 01:06
- Rare Earth: our core differes from others -
David Turell,
2017-02-21, 15:58
- Rare Earth: early Earth warm not frozen -
David Turell,
2016-10-09, 01:27
- Rare Earth: once again, how rare? -
David Turell,
2016-09-19, 18:17
- Rare Earth: once again, how rare? -
David Turell,
2016-09-02, 01:00
- Rare Earth: our protective magnetic field -
David Turell,
2017-05-01, 14:32
- Rare Earth: Scientific Am. discovers plate tectonics -
David Turell,
2017-07-21, 01:34
- Rare Earth: Inner core puzzle - David Turell, 2018-02-10, 00:59
- Rare Earth: Scientific Am. discovers plate tectonics -
David Turell,
2017-07-21, 01:34
- Rare Earth: alien planets and life -
David Turell,
2016-07-20, 22:09
- Rare Earth: our protective magnetic field -
David Turell,
2016-06-02, 02:43
- Rare Earth: our protective magnetic field -
David Turell,
2016-05-20, 23:11
- Rare Earth: our protective magnetic field -
David Turell,
2016-04-17, 23:38
- Rare Earth; compared to others -
David Turell,
2016-02-28, 15:32
- Rare Earth; compared to others -
dhw,
2016-02-28, 13:33
- Rare Earth; compared to others -
David Turell,
2016-02-27, 14:52
- Rare Earth; compared to others -
dhw,
2016-02-26, 13:16
- Rare Earth; compared to others -
David Turell,
2016-02-26, 01:15
- Rare Earth; compared to others -
David Turell,
2016-02-19, 18:53
- Rare Earth; compared to others -
David Turell,
2015-09-17, 14:08
- Rare Earth; our amazing mineral supply -
David Turell,
2015-08-27, 14:32
- Rare Earth; how rare? -
David Turell,
2012-01-12, 15:04
- Rare Earth; how rare? -
David Turell,
2011-12-12, 02:21
- Rare Earth; how rare? -
xeno6696,
2011-12-12, 00:53
- Rare Earth; how rare? -
David Turell,
2011-12-12, 00:04
- Rare Earth; how rare? -
xeno6696,
2011-12-11, 18:32
- Rare Earth; how rare? -
David Turell,
2011-12-11, 00:49
- Rare Earth; how rare? -
xeno6696,
2011-12-10, 22:04