Once we become a multiplanet species, our chances to live long and prosper will take a huge leap skyward. — David Grinspoon Copy Share Image
Earth is going to lose its oceans in the future, just as Venus did in the past. How long planets retain their… — David Grinspoon Copy Share Image
As long as we are a single-planet species, we are vulnerable to extinction by a planetwide catastrophe, natural or self-induced. Once we… — David Grinspoon Copy Share Image
It will be a long time, if ever, before we get to study Earth-like planets orbiting around other stars, so really, the… — David Grinspoon Copy Share Image
We definitely don't want to go through another Ice Age or another natural cycle of global warming. Both happen over a long… — 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
There was a long history of people believing there was life on Venus. It was about the same size as Earth. It… — David Grinspoon Copy Share Image
As long as we can imagine a better path, of course we are obligated to seek it. This is why unwarranted pessimism… — 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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
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 Image
