Space/Science « The HabitableZone

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Parting Shot ER October 27, 2025 4:36 am (Off-Topic)

The 1% RobVG October 27, 2025 10:54 am (Off-Topic)

Message in a bottle BuckGalaxy October 29, 2025 10:55 am (Off-Topic)

According to some, we're a nation of illiterate dependents looking for a handout RobVG October 27, 2025 8:56 pm (CurrentEvents)

Space X put on notice RobVG October 20, 2025 4:55 pm (Space/Science)

There is no bottom to this barrel... RL October 19, 2025 5:40 pm (CurrentEvents)

John Wheeler's philosophy: "Beyond the Black Hole" RL October 16, 2025 10:00 pm (Space/Science)

Brosz baffled, Bondi busts Bolton ER October 16, 2025 2:08 pm (CurrentEvents)

Season 3 - Foundation BuckGalaxy August 2, 2025 12:33 pm (Science Fiction)

Where we are now RL October 8, 2025 6:02 pm (CurrentEvents)

No sugar tonight in my coffee, no sugar tonight in my tea ER October 15, 2025 5:07 pm (Space/Science)

Science backs up what I have been saying for years... RL October 15, 2025 7:59 pm (CurrentEvents)

Shifting motivation for space exploration by bowser December 17, 2012 10:53 am

In America (the way it's supposed to work) is us citizens do what we want with our money. by alcaray 2012-12-17 13:40:40
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- I think we just don't care. by ER 2012-12-17 14:07:28
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  - I don't think most of the people hanging out at this website communicate regularly with their congresspeople. by alcaray 2012-12-17 15:29:20
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Portugal used to be the leading European maritime power. by ER 2012-12-17 11:52:40
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Instead of 50 kg, perhaps it was 5,000 Kg by johannes December 14, 2012 10:07 am

Oops, convert the watts into Joules. by johannes 2012-12-14 10:14:24
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Shaken, not stirred. by ER November 29, 2012 12:52 pm

Another graph by RobVG 2012-12-10 18:46:52
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- How much energy is needed by johannes 2012-12-11 18:27:48
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- Check out my response to the Techster below... by ER 2012-12-10 20:25:36
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- OMG! by alcaray 2012-12-10 20:16:26
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  - Smartass. by ER 2012-12-10 20:37:58
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    - Well it does raise an important consideration. by alcaray 2012-12-11 04:47:04
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      - Causation vs Correlation by ER 2012-12-11 06:21:53
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Temperature rising by johannes 2012-11-30 21:48:50
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How hot is it? by johannes 2012-11-29 18:55:35
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Sea level rise by Lindy 2012-11-29 16:59:07
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- I sawr the news today., oh boy.. by ER 2012-11-29 17:15:21
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  - Denialists or merely those who realize temperature is a byproduct of radiation. by SDAI-Tech 2012-12-10 16:26:47
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    - No, Tech. I think YOUR life follows lunar cycles, not solar ones. by ER 2012-12-10 17:43:36
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      - Thanks for the smile... by SDAI-Tech 2012-12-10 21:42:31
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        I think he's a liberal pretending to be a conservative pretending to be a liberal. by alcaray 2012-12-11 14:51:04
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        I think you've got it exactly backwards. by ER 2012-12-11 16:42:42
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        I win. by alcaray 2012-12-11 14:51:38
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        What makes you think Marco is a Conservative? by ER 2012-12-11 06:27:58
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  - I'll bet you have some screwy beliefs. by bowser 2012-11-30 14:09:23
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    - What will the preachers do when the Devil is saved? by ER 2012-11-30 17:21:33
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      - Attack the Devil's sincerity. Create more Devils. by bowser 2012-12-04 16:39:38
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I’d like to relate the ice cover to the use of nuclear power. by johannes 2012-11-29 15:07:36
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- I'd like to relate the ice cover to the use of fossil fuels. by ER 2012-11-29 18:17:27
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- good idea. by alcaray 2012-11-29 16:53:17
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The Black Marble by SteveS December 11, 2012 6:44 am

Link by SteveS 2012-12-11 18:10:21
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oops by SteveS 2012-12-11 06:48:29
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- unoops by Robert 2012-12-11 11:54:54
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  - Thank you by SteveS 2012-12-11 18:10:53
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NASA seems to be doing a poor PR job with Curiosity. by bowser December 8, 2012 10:54 pm

May be they found by johannes 2012-12-09 11:51:50
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- That's wrong in so many ways. by ER 2012-12-09 14:48:18
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  - What would happen if they found by johannes 2012-12-10 13:13:45
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    - Yes. by ER 2012-12-10 14:20:38
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Morning Mars pic by RobVG December 10, 2012 8:51 am

It looks like Texas. by ER 2012-12-10 08:52:54
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- LMAO! Thanks ER..I needed that. by Jody 2012-12-10 10:46:02
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Asteroid mining by TB December 7, 2012 2:29 pm

Something the earlier thread overlooked: Energy. by podrock 2012-12-07 15:50:24
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Mars; here we come. by johannes December 3, 2012 7:38 pm

A long way to go but I'm glad it's his mission by BuckGalaxy 2012-12-03 21:31:54
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- Apollo cost $100G in today's dollars. by ER 2012-12-04 11:14:48
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  - Colonization ain't gonna happen. by bowser 2012-12-04 16:37:27
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    - It's not impossible, just unprofitable. by ER 2012-12-04 19:06:09
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      - So what's wrong with constant resupply from a home base? by TB 2012-12-04 20:24:07
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        The tensions facing this Earth and species won't allow those expenditures. by bowser 2012-12-05 17:08:05
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        You need a reason to go there. by ER 2012-12-04 23:24:46
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        Good point. by TB 2012-12-05 10:29:31
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        There's a lot of stuff in space we need here. by ER 2012-12-05 13:13:39
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        Not the Moon. Asteroids. Avoid gravity wells when you can. by TB 2012-12-05 21:29:43
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        The Belt is good... by ER 2012-12-06 09:02:24
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        There are innovative entrepreneurs investing in this. by TB 2012-12-06 11:52:04
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        I wish them the best of luck. by ER 2012-12-06 16:48:55
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        "Belt to the inner solar system is just as energy-expensive–you have to slow down when you get home." by alcaray 2012-12-06 11:06:47
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        True, but aero braking by ER 2012-12-06 17:07:17
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        We used to think that sending probes to other planets required using rockets to achieve orbit. by alcaray 2012-12-06 17:50:27
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        Gravity assists require precise planetary alignments. by ER 2012-12-06 18:36:19
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        "don't occur all that frequently..." by alcaray 2012-12-06 23:08:15
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        Sails were a kind of warp drive. by ER 2012-12-07 06:09:17
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        My point by alcaray 2012-12-07 12:22:24
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        I'm not just trying to pick a fight and prove I must be right. by ER 2012-12-07 12:50:04
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Re: Space exploration. US can't afford a joint ESA-US Europa trip. Can spend $400 million each on F-22s. by bowser December 6, 2012 4:16 pm

Localized warming by RobVG December 4, 2012 9:36 am

Actually the basic concept is simple. by johannes 2012-12-04 21:01:25
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Do you ever wonder... by TB 2012-12-04 12:23:55
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You're right. We don't understand. by ER 2012-12-04 10:05:58
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- Nothing new, everything new. by bowser 2012-12-04 12:40:58
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- Very reasonable view. by TB 2012-12-04 11:26:27
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  - The S Hemisphere "anomaly" has already been explained. by ER 2012-12-04 12:11:18
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Looks as if the big Mars news was not what they found but what they thought they were going to find. by bowser December 3, 2012 12:54 pm

A word on the ramifications o the miscommunication. by alcaray 2012-12-03 17:33:56
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- Not to worry. by bowser 2012-12-03 19:22:27
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It depends on what part of the story you read. by johannes 2012-12-03 15:14:02
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What is chlorinated methane? Sounds like a "nerve gas precursor". by alcaray 2012-12-03 14:17:18
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Why black holes don't suck. by ER November 27, 2012 7:01 pm

A 10 y/o plays football against the 49ers. by bowser 2012-11-30 13:52:58
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- That's relativity. by alcaray 2012-11-30 21:36:57
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Your argument is valid, except for the fact that by johannes 2012-11-28 11:27:55
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- Use or misuse of a word tells us nothing about what the word allegedly describes. by ER 2012-11-28 17:23:20
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  - Obsession about definitions? by johannes 2012-11-29 12:44:27
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    - Black Hole is a term coined by astronomers. by ER 2012-11-29 16:50:29
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      - You wrote that by johannes 2012-11-29 19:43:57
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        Newton was 99.99% right. by alcaray 2012-11-29 20:46:45
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        :) by TB 2012-11-29 20:07:48
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        It is interesting how an honest dialogue often turns towards the absurd. by johannes 2012-11-30 12:46:46
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        People saying absurd things will do that. by alcaray 2012-11-30 13:30:50
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        Tell me about it. by TB 2012-11-30 13:20:28
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- The galaxy is expanding? I don't think so. by alcaray 2012-11-28 12:31:25
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  - My reasoning is that by johannes 2012-11-28 14:21:40
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    - Objects that close are both red-shifted and blue-shifted... by alcaray 2012-11-28 23:43:45
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    - But stars and galaxies of stars were formed by gravity? Tthey formed by contraction. I by RobVG 2012-11-28 16:49:39
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      - Contraction, explosion, expansion. Perhaps. by johannes 2012-11-29 12:50:56
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    - Why not use your reasoning, instead, by ER 2012-11-28 16:28:26
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      - The concept of an experimental proof is very simple. by johannes 2012-11-29 12:41:53
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        No, Johannes. by ER 2012-11-29 13:10:59
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        Hmm, interesting by johannes 2012-11-29 15:00:27
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        Why make things so complicated? by alcaray 2012-11-29 16:51:36
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        The calculations? by johannes 2012-11-29 19:53:49
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        The calculations do not need to explain any theory to any layman. by alcaray 2012-11-29 20:49:47
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        You are assuming that it is the “mass” that causes the gravitational field. by johannes 2012-11-30 12:46:02
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        No I am not. by alcaray 2012-11-30 13:35:11
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        OK now that you read about it. by johannes 2012-11-30 20:39:06
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        I was hoping you would read about it. by alcaray 2012-11-30 21:11:50
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        I read it but did not get the an answer to my question. by johannes 2012-11-30 21:53:09
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        Your shields are impervious. I yield. by alcaray 2012-12-01 17:35:45
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        I KNOW!!!! johannes....you aren't even trying to see a different viewpoint. You are convinced you are right, and on that ... by Jody 2012-12-01 19:33:40
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        The shortest possible answer... by TB 2012-11-30 21:06:24
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        You have a good question. by johannes 2012-11-30 21:54:54
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        Correction by johannes 2012-11-29 15:01:21
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Well done, 4.0, except they do seem to suck, a lot, and blow, a little. by bowser 2012-11-27 23:21:11
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- That's true, but... by ER 2012-11-28 04:49:18
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Excellent, thanks n/t by RobVG 2012-11-27 21:34:58
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