Mars does not belong to 'America,' nor to Earth, nor to human beings. — David Grinspoon Copy Share Image
Whenever I see a nighttime picture of Earth from space, with its glowing lights, I am stirred by its beauty. — David Grinspoon Copy Share Image
I will defend the NASA Earth Science Division with everything I've got. — David Grinspoon Copy Share Image
Earth is a stunningly lovely planet for so many reasons. Among these is the wondrous presence of curious, artful, inventive humanity. — David Grinspoon Copy Share Image
It's quite possible there's as much lightning on Venus as on Earth. — David Grinspoon Copy Share Image
I don't see it as coincidence that the great acceleration of the Anthropocene influences on Earth came during the same decades as… — David Grinspoon Copy Share Image
Mars does not have an atmosphere and does not have a magnetic field today, so the planet doesn't have the protection from… — David Grinspoon Copy Share Image
Ever since the environmental movement was sparked by photos of the whole Earth taken by astronauts onboard Apollo Lunar Modules, I've seen… — David Grinspoon Copy Share Image
It's quite possible that the end of us will not be the end of the Earth. Even if we really screw things… — David Grinspoon Copy Share Image
Even as our unwitting alterations to Earth's carbon and hydrological cycles slowly make storms more damaging, our ability to monitor our planet… — David Grinspoon Copy Share Image
We're going to stop looking at Earth from orbit because we don't like what we are seeing and the conclusions that leads… — David Grinspoon Copy Share Image
If we gutted NASA Earth Science, it wouldn't be NOAA or some other agency that would take the lead. It would be… — David Grinspoon Copy Share Image
Humanity has at least a dim, and growing, cognisance of the effects of its presence on this planet. The possibility that we… — David Grinspoon Copy Share Image
What I wonder most about the Anthropocene is not when did it start - but when, and how, will it end? Will… — David Grinspoon Copy Share Image
As Earth's climate changes, we can expect more destructive hurricanes. As sea level and surface temperatures rise, more solar energy is trapped… — David Grinspoon Copy Share Image
It is said that Mahatma Gandhi, when asked about Western civilization, remarked, 'I think it would be a good idea.' That's how… — David Grinspoon Copy Share Image
Why should we consider defining intelligence as something global and as something that hasn't actually yet appeared on Earth? It may be… — David Grinspoon Copy Share Image
It's one of the big mysteries about Venus: How did it get so different from Earth when it seems likely to have… — David Grinspoon Copy Share Image
The reason you see so many volcanoes on Venus is partly due to the fact that there's virtually no erosion there. So… — David Grinspoon Copy Share Image
What I'm interested in is the conversations going on about the Anthropocene and what it means to view ourselves as a part… — David Grinspoon Copy Share Image
You cannot study other planets without referring to Earth and without applying the techniques and the insights of Earth science. And you… — David Grinspoon Copy Share Image
Titan has rivers and lakes of liquid methane and ethane, methane weather systems of clouds and storms that mirror Earth's hydrologic cycle,… — David Grinspoon Copy Share Image
Earth's biosphere gave birth to humans and our thoughts, which are now reshaping its planetary cycles. A planet with brains? Fancy that. — David Grinspoon Copy Share Image
There are other planets besides the Earth and Mars. I'd like to remind you that studying Venus is vital to understanding life… — David Grinspoon Copy Share Image
NASA, and all the other spacefaring nations of the world, have agreed to a set of 'planetary-protection' principles, aimed at preventing the… — David Grinspoon Copy Share Image
I think the best SF writers are very aware of what we, in the scientific community, are doing, thinking, and discovering. — David Grinspoon Copy Share
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… — David Grinspoon Copy Share
When you think about alien intelligences making art, you then have to think about what art is and how bound up it is in… — David Grinspoon Copy Share
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?… — David Grinspoon Copy Share
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… — David Grinspoon Copy Share
I do comparative studies of climate evolution, and the interactions between planetary atmosphere and surfaces and their radiation environment, and try to understand the… — David Grinspoon Copy Share
I'd been politically active ever since my parents wheeled me in a stroller in a 'ban the bomb' march in Boston in 1963. — David Grinspoon Copy Share
Through space-based climate studies, my colleagues and I have learned that a stable and comfortable climate is not something to take for granted. — David Grinspoon Copy Share
We have all this very clever technology and all these abilities to manipulate the world in all these ways, yet we are faced with… — David Grinspoon Copy Share
The planet Mars - crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms - has long formed a celestial tabula rasa… — David Grinspoon Copy Share
Certainly for me, as an astrobiologist, science fiction has played an important role. One of the quandaries of our field is that we are… — David Grinspoon Copy Share
Time and time again, our species has escaped existential threats by reinventing ourselves, finding new skills not coded in our genes to survive new… — David Grinspoon Copy Share
I think that an advanced planetary civilization will modify their own planets to be more stable, to prevent asteroid impacts and dangerous climate fluctuations. — David Grinspoon Copy Share
Responsible global behaviour is ultimately an act of self-preservation of, by, and for the global beast that modern technological humanity has become. — David Grinspoon Copy Share
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… — David Grinspoon Copy Share
