Mars does not belong to 'America,' nor to Earth, nor to human beings. — 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
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
Venus and Mars are our next of kin: they are the two most Earth-like planets that we know about. They're the only… — David Grinspoon Copy Share Image
The future peopling of Mars is much more than a scientific endeavor. It is a step of historic and spiritual importance for… — David Grinspoon Copy Share Image
The more we look at the kinds of soils and the nature of the atmosphere and the polar caps, it all adds… — David Grinspoon Copy Share Image
Before we go there and set up greenhouses, dance clubs, and falafel stands, let's make sure that, in some subtle form that… — David Grinspoon Copy Share Image
The planet Mars -- crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms -- has long formed a celestial… — David Grinspoon Copy Share Image
The planet Mars - crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms - has long formed a celestial… — 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
