David Grinspoon

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

— David Grinspoon

Fixing global warming is more important than astronomy.

— David Grinspoon

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

— David Grinspoon

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

— David Grinspoon

I think Pluto has to be considered among the places in the solar system that are possible homes for life.

— David Grinspoon

The hallmark of the human species is great adaptability.

— 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

We're going to get off fossil fuels, no question. We may not do it quickly enough to avoid some pain, and I'm…

— 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

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

— 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

When I first went to college, I went into physics, and my goal was to help perfect nuclear fusion so I could…

— David Grinspoon

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

I intend to apply the perspective of astrobiology, which is a deep-time way of looking at life on Earth, towards the question…

— David Grinspoon

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

Literally, my earliest memory, my earliest vivid memory, is the Apollo 11 landing on the Moon. Yeah, I was in fourth grade,…

— David Grinspoon

What I wonder most about the Anthropocene is not when did it start - but when, and how, will it end? Will…

— 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

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

One of the weird things about modern physics is that we do find there are apparently these other dimensions that we don't…

— 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

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

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

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

— 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

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

— David Grinspoon

Part of the point of SETI has always been a search for answers about our own cosmic potential and destiny. If 'they'…

— David Grinspoon

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

Among the plausible niches for extraterrestrial life in our solar system, the clouds of Venus are among the most accessible and the…

— David Grinspoon

Earth is going to lose its oceans in the future, just as Venus did in the past. How long planets retain their…

— 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…

— 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…

— David Grinspoon

The mature Anthropocene begins when we acquire the ability to live sustainably and become a lasting presence on this world.

— 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.

— David Grinspoon

The more we look at the kinds of soils and the nature of the atmosphere and the polar caps, it all adds…

— David Grinspoon

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

I think that an advanced planetary civilization will modify their own planets to be more stable, to prevent asteroid impacts and dangerous…

— David Grinspoon

There's no question to my mind that saving our civilization and many other species is more important than our ability to do…

— David Grinspoon