--- title: "Meaning & Key Takeaway of: It's one of the big mysteries about…" description: "\"It's one of the big mysteries about Venus: How did it get so different from Earth when it seems likely to have started so similarly? The question becom..." image: "https://sms4smile.com/quotes/i/ef2/david-grinspoon-5141_big_it-s-one-of-the-big-mysteries-about-venu_1054890.jpg" --- # It's one of the big mysteries about Venus: How did it get… ![“It's one of the big mysteries about Venus: How did it get so different from Earth when it seems likely to have started so similarly? The question becomes richer when you consider astrobiology, the possibility that Venus and Earth were very similar during the time of the origin of life on Earth.” quote by David Grinspoon](https://sms4smile.com/quotes/i/ef2/david-grinspoon-5141_big_it-s-one-of-the-big-mysteries-about-venu_1054890.jpg) [Download](https://sms4smile.com/quotes/i/ef2/david-grinspoon-5141_big_it-s-one-of-the-big-mysteries-about-venu_1054890.jpg) [Open image](https://sms4smile.com/quotes/i/ef2/david-grinspoon-5141_big_it-s-one-of-the-big-mysteries-about-venu_1054890.jpg) > “It's one of the big mysteries about Venus: How did it get so different from Earth when it seems likely to have started so similarly? The question becomes richer when you consider astrobiology, the possibility that Venus and Earth were very similar during the time of the origin of life on Earth.” [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Venus and Earth likely shared early conditions, but divergent evolution led to stark differences, prompting questions about planetary habitability and life's origins. **In simple terms:** Venus and Earth started similarly but evolved differently. Key Takeaway Study planetary evolution to understand habitability. Themes planetary science astrobiology comparative planetology Mood inquisitive scientific Type educational philosophical When to use this quote - space missions - comparative geology - educational lectures Key Concepts planetary evolution habitability origin of life Questions to Reflect On - What factors caused Venus’s divergence? - How does this inform exoplanet searches? A Different Perspective Data on Venus is limited and ambiguous. ★ ★ ★ ★ ★ No ratings yet [Astrobiology](https://sms4smile.com/quotes/about/astrobiology/) [Earth](https://sms4smile.com/quotes/about/earth/) [Life](https://sms4smile.com/quotes/about/life/) [Origin](https://sms4smile.com/quotes/about/origin/) [Origin of life](https://sms4smile.com/quotes/about/origin-of-life/) [Space](https://sms4smile.com/quotes/about/space/) [Time](https://sms4smile.com/quotes/about/time/) ## Related quotes > [It's quite possible there's as much lightning on Venus as on Earth.](https://sms4smile.com/quotes/david-grinspoon/it-s-quite-possible-there-s-as-much-lightning-on-venus-as-on-earth/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [“Astrobiology simply presumes that a planet in the Goldilocks zone containing liquid water will somehow produce life. This leads to the “follow-the-water” strategy in…](https://sms4smile.com/quotes/cris-putnam/astrobiology-simply-presumes-that-a-planet-in-the-goldilocks-zone/) Cris Putnam > [Astrobiology is the science of life in the universe. It's an attempt to scientifically deal with the question of whether or not we're alone…](https://sms4smile.com/quotes/david-grinspoon/astrobiology-is-the-science-of-life-in-the-universe-it-s-an-attempt/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [Astrobiology is a great point of contact for science outreach. The public is naturally interested in extra-terrestrial life. Astrobiology provides an accessible point of…](https://sms4smile.com/quotes/david-grinspoon/astrobiology-is-a-great-point-of-contact-for-science-outreach-the/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [I intend to apply the perspective of astrobiology, which is a deep-time way of looking at life on Earth, towards the question of the…](https://sms4smile.com/quotes/david-grinspoon/i-intend-to-apply-the-perspective-of-astrobiology-which-is-a-deep/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [“At the W.M. Keck Observatory on the very high altitude summit of Mauna Kea, there was no routine monitoring of mental functioning, blood oxygen…](https://sms4smile.com/quotes/steven-magee/at-the-w-m-keck-observatory-on-the-very-high-altitude-summit-of-mauna/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“In high altitude astronomical facilities we routinely discharged large amounts of nitrogen gas into closed spaces. We were never informed by the astronomy management…](https://sms4smile.com/quotes/steven-magee/in-high-altitude-astronomical-facilities-we-routinely-discharged/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“When I worked in astronomy, I routinely observed young college and university students working with liquid nitrogen and breathing nitrogen gas as they discharged…](https://sms4smile.com/quotes/steven-magee/when-i-worked-in-astronomy-i-routinely-observed-young-college-and/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [I suppose my interest in looking for life elsewhere in the universe really dates back to my teens. What teenager doesn't look up at…](https://sms4smile.com/quotes/paul-davies/i-suppose-my-interest-in-looking-for-life-elsewhere-in-the-universe/) [Paul Davies](https://sms4smile.com/quotes/author/paul-davies/) > [“When the National Optical Astronomy Observatory (NOAO) found out that Occupational Safety and Health Administration (OSHA) were going to visit the site to assist…](https://sms4smile.com/quotes/steven-magee/when-the-national-optical-astronomy-observatory-noao-found-out-that/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Astronomy staff that routinely discharged industrial gas into the indoor environment at high altitudes did not wear oxygen deficiency monitors or protective breathing respirators.”](https://sms4smile.com/quotes/steven-magee/astronomy-staff-that-routinely-discharged-industrial-gas-into-the/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Life is not a miracle. It is a natural phenomenon, and can be expected to appear whenever there is a planet whose conditions duplicate…](https://sms4smile.com/quotes/harold-urey/life-is-not-a-miracle-it-is-a-natural-phenomenon-and-can-be-expected/) [Harold Urey](https://sms4smile.com/quotes/author/harold-urey/) > [“Very high altitude astronomy only works by ignoring established biological science”](https://sms4smile.com/quotes/steven-magee/very-high-altitude-astronomy-only-works-by-ignoring-established/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Industrial liquid gas containers were left open and venting gas into the indoor environment in high altitude astronomy. On reflection, I realized that I…](https://sms4smile.com/quotes/steven-magee/industrial-liquid-gas-containers-were-left-open-and-venting-gas-into/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“The toxicity of medical and industrial gas to the human depends on where it is used. A gas that is regarded as safe in…](https://sms4smile.com/quotes/steven-magee/the-toxicity-of-medical-and-industrial-gas-to-the-human-depends-on/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) ## More by David Grinspoon > [I think the best SF writers are very aware of what we, in the scientific community, are doing, thinking, and discovering.](https://sms4smile.com/quotes/david-grinspoon/i-think-the-best-sf-writers-are-very-aware-of-what-we-in-the/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [If we gutted NASA Earth Science, it wouldn't be NOAA or some other agency that would take the lead. It would be the Chinese…](https://sms4smile.com/quotes/david-grinspoon/if-we-gutted-nasa-earth-science-it-wouldn-t-be-noaa-or-some-other/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [When you think about alien intelligences making art, you then have to think about what art is and how bound up it is in…](https://sms4smile.com/quotes/david-grinspoon/when-you-think-about-alien-intelligences-making-art-you-then-have-to/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [What if life is not carbon-based? Can life exist as a gas or a plasma? Could planets or stars in some sense be alive?…](https://sms4smile.com/quotes/david-grinspoon/what-if-life-is-not-carbon-based-can-life-exist-as-a-gas-or-a-plasma/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [What I'm interested in is the conversations going on about the Anthropocene and what it means to view ourselves as a part of Earth's…](https://sms4smile.com/quotes/david-grinspoon/what-i-m-interested-in-is-the-conversations-going-on-about-the/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [I do comparative studies of climate evolution, and the interactions between planetary atmosphere and surfaces and their radiation environment, and try to understand the…](https://sms4smile.com/quotes/david-grinspoon/i-do-comparative-studies-of-climate-evolution-and-the-interactions/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [I'd been politically active ever since my parents wheeled me in a stroller in a 'ban the bomb' march in Boston in 1963.](https://sms4smile.com/quotes/david-grinspoon/i-d-been-politically-active-ever-since-my-parents-wheeled-me-in-a/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [Through space-based climate studies, my colleagues and I have learned that a stable and comfortable climate is not something to take for granted.](https://sms4smile.com/quotes/david-grinspoon/through-space-based-climate-studies-my-colleagues-and-i-have-learned/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [We have all this very clever technology and all these abilities to manipulate the world in all these ways, yet we are faced with…](https://sms4smile.com/quotes/david-grinspoon/we-have-all-this-very-clever-technology-and-all-these-abilities-to/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [The planet Mars - crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms - has long formed a celestial tabula rasa…](https://sms4smile.com/quotes/david-grinspoon/the-planet-mars-crimson-and-bright-filling-our-telescopes-with-vague/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [Certainly for me, as an astrobiologist, science fiction has played an important role. One of the quandaries of our field is that we are…](https://sms4smile.com/quotes/david-grinspoon/certainly-for-me-as-an-astrobiologist-science-fiction-has-played-an/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [Time and time again, our species has escaped existential threats by reinventing ourselves, finding new skills not coded in our genes to survive new…](https://sms4smile.com/quotes/david-grinspoon/time-and-time-again-our-species-has-escaped-existential-threats-by/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [I think that an advanced planetary civilization will modify their own planets to be more stable, to prevent asteroid impacts and dangerous climate fluctuations.](https://sms4smile.com/quotes/david-grinspoon/i-think-that-an-advanced-planetary-civilization-will-modify-their-own/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [Responsible global behaviour is ultimately an act of self-preservation of, by, and for the global beast that modern technological humanity has become.](https://sms4smile.com/quotes/david-grinspoon/responsible-global-behaviour-is-ultimately-an-act-of-self/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [Venus and Mars are our next of kin: they are the two most Earth-like planets that we know about. They're the only two other…](https://sms4smile.com/quotes/david-grinspoon/venus-and-mars-are-our-next-of-kin-they-are-the-two-most-earth-like/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) [Explore all 103 David Grinspoon quotes ](https://sms4smile.com/quotes/author/david-grinspoon/) ## More Astrobiology quotes > [“The toxicity of medical and industrial gas to the human depends on where it is used. A gas that is regarded as safe in…](https://sms4smile.com/quotes/steven-magee/the-toxicity-of-medical-and-industrial-gas-to-the-human-depends-on/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Industrial liquid gas containers were left open and venting gas into the indoor environment in high altitude astronomy. On reflection, I realized that I…](https://sms4smile.com/quotes/steven-magee/industrial-liquid-gas-containers-were-left-open-and-venting-gas-into/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Very high altitude astronomy only works by ignoring established biological science”](https://sms4smile.com/quotes/steven-magee/very-high-altitude-astronomy-only-works-by-ignoring-established/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Life is not a miracle. It is a natural phenomenon, and can be expected to appear whenever there is a planet whose conditions duplicate…](https://sms4smile.com/quotes/harold-urey/life-is-not-a-miracle-it-is-a-natural-phenomenon-and-can-be-expected/) [Harold Urey](https://sms4smile.com/quotes/author/harold-urey/) > [I intend to apply the perspective of astrobiology, which is a deep-time way of looking at life on Earth, towards the question of the…](https://sms4smile.com/quotes/david-grinspoon/i-intend-to-apply-the-perspective-of-astrobiology-which-is-a-deep/) [David Grinspoon](https://sms4smile.com/quotes/author/david-grinspoon/) > [“Astronomy staff that routinely discharged industrial gas into the indoor environment at high altitudes did not wear oxygen deficiency monitors or protective breathing respirators.”](https://sms4smile.com/quotes/steven-magee/astronomy-staff-that-routinely-discharged-industrial-gas-into-the/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“When the National Optical Astronomy Observatory (NOAO) found out that Occupational Safety and Health Administration (OSHA) were going to visit the site to assist…](https://sms4smile.com/quotes/steven-magee/when-the-national-optical-astronomy-observatory-noao-found-out-that/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [I suppose my interest in looking for life elsewhere in the universe really dates back to my teens. What teenager doesn't look up at…](https://sms4smile.com/quotes/paul-davies/i-suppose-my-interest-in-looking-for-life-elsewhere-in-the-universe/) [Paul Davies](https://sms4smile.com/quotes/author/paul-davies/) > [“When I worked in astronomy, I routinely observed young college and university students working with liquid nitrogen and breathing nitrogen gas as they discharged…](https://sms4smile.com/quotes/steven-magee/when-i-worked-in-astronomy-i-routinely-observed-young-college-and/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“In high altitude astronomical facilities we routinely discharged large amounts of nitrogen gas into closed spaces. We were never informed by the astronomy management…](https://sms4smile.com/quotes/steven-magee/in-high-altitude-astronomical-facilities-we-routinely-discharged/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“At the W.M. Keck Observatory on the very high altitude summit of Mauna Kea, there was no routine monitoring of mental functioning, blood oxygen…](https://sms4smile.com/quotes/steven-magee/at-the-w-m-keck-observatory-on-the-very-high-altitude-summit-of-mauna/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“Astrobiology simply presumes that a planet in the Goldilocks zone containing liquid water will somehow produce life. This leads to the “follow-the-water” strategy in…](https://sms4smile.com/quotes/cris-putnam/astrobiology-simply-presumes-that-a-planet-in-the-goldilocks-zone/) Cris Putnam > [“My memories of my time in high altitude astronomy indicate that there were no oxygen concentration monitors or alarms in the areas that liquid…](https://sms4smile.com/quotes/steven-magee/my-memories-of-my-time-in-high-altitude-astronomy-indicate-that-there/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“When discharging industrial gas into the indoor environment in high altitude astronomy, we never wore breathing respirators that fed us oxygenated air at above…](https://sms4smile.com/quotes/steven-magee/when-discharging-industrial-gas-into-the-indoor-environment-in-high/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) > [“One of the biggest lies that is currently being told in the USA workplace is on the legally required OSHA poster: All workers have…](https://sms4smile.com/quotes/steven-magee/one-of-the-biggest-lies-that-is-currently-being-told-in-the-usa/) [Steven Magee](https://sms4smile.com/quotes/author/steven-magee/) [Browse all 28 Astrobiology quotes ](https://sms4smile.com/quotes/about/astrobiology/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "It's one of the big mysteries about Venus: How did it get so different from Earth when it seems likely to have started so similarly? 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