David Grinspoon

Fixing global warming is more important than astronomy.

— David Grinspoon

I will defend the NASA Earth Science Division with everything I've got.

— David Grinspoon

Mars does not belong to 'America,' nor to Earth, nor to human beings.

— David Grinspoon

There's something cool about being involved in new missions to other planets.

— David Grinspoon

The hallmark of the human species is great adaptability.

— David Grinspoon

We can look out on an alien landscape that no one has seen before and find it beautiful.

— David Grinspoon

We don't know that Venus had oceans, but there's every reason to believe it did.

— David Grinspoon

It's quite possible there's as much lightning on Venus as on Earth.

— David Grinspoon

In order to have a decent chance to be a communicating species, you would have to learn to think and plan and…

— David Grinspoon

I think chemists always think they know more than they know, because nature has a lot of possible pathways it can try.

— David Grinspoon

I'd like to jump a couple hundred years into the future and work with the scientists who are getting back the first…

— 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.

— David Grinspoon

Once we become a multiplanet species, our chances to live long and prosper will take a huge leap skyward.

— David Grinspoon

A lot of the science fiction that I grew up reading was written when we still thought that Venus might be an…

— David Grinspoon

Whenever I see a nighttime picture of Earth from space, with its glowing lights, I am stirred by its beauty.

— David Grinspoon

Our most valuable resources - creativity, communication, invention, and reinvention - are, in fact, unlimited.

— David Grinspoon

I was a science fiction geek from an early age, enthralled by the questions of life in the universe. As I got…

— David Grinspoon

There's eco-pragmatism, where you recognize, 'Yeah, we live on a planet that's permanently altered by humanity, and rather than seek to return…

— David Grinspoon

Certainly for me, as an astrobiologist, science fiction has played an important role. One of the quandaries of our field is that…

— David Grinspoon

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

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

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

What if life is not carbon-based? Can life exist as a gas or a plasma? Could planets or stars in some sense…

— David Grinspoon

Now, humans have become a dominant force of planetary change and, thus, we may have entered an eon of post-biological evolution in…

— David Grinspoon

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

I'm a strong advocate of new missions to Venus.

— David Grinspoon

My high-school friends and I felt part of a community of smart, forward-looking space and technology freaks.

— David Grinspoon

Humans are possessed, to some degree, with the power of foresight. Yet we so often learn things the hard way, through disaster.

— David Grinspoon

I do a lot of work with NASA and am involved in research projects studying planetary evolution, Earth-like planets, and potential conditions…

— David Grinspoon

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

I'm an astrobiologist, and I come from a planetary science background, so in a very broad sense, I study the evolution of…

— David Grinspoon

As long as we can imagine a better path, of course we are obligated to seek it. This is why unwarranted pessimism…

— David Grinspoon

It turns out one of my dad's best friends was Carl Sagan when I was little. They were both Harvard professors.

— 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…

— David Grinspoon

Seriously, we should start taxing churches and have tax-exempt places for worship and study of nature and art. Charge ten bucks for…

— David Grinspoon

Time and time again, our species has escaped existential threats by reinventing ourselves, finding new skills not coded in our genes to…

— David Grinspoon

In environments that are energy-rich but liquid-poor, like near the surface of Titan, natural selection may favor organisms that use their metabolic…

— David Grinspoon

I think the best SF writers are very aware of what we, in the scientific community, are doing, thinking, and discovering.

— David Grinspoon

There was a long history of people believing there was life on Venus. It was about the same size as Earth. It…

— David Grinspoon

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