The planet Mars -- crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms -- has long formed a celestial… — David Grinspoon Alien invasion 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… — David Grinspoon Art Copy Share Image
If you were on the surface of Venus, assuming you could see the Sun, which, you know, would be hard because it's… — David Grinspoon Copy Share Image
We need visions of a future in which we have applied our infinite creativity to the task of living on a finite… — David Grinspoon Creativity 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… — David Grinspoon Biosphere 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 Earth Copy Share Image
I was a science fiction geek from an early age, enthralled by the questions of life in the universe. As I got… — David Grinspoon Age Copy Share Image
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 Humanity 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 Earth 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 Climate Copy Share Image
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 Biological evolution 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… — David Grinspoon Alive Copy Share Image
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 Experience 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 Earth 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 Catastrophe Copy Share Image
Literally, my earliest memory, my earliest vivid memory, is the Apollo 11 landing on the Moon. Yeah, I was in fourth grade,… — David Grinspoon Copy Share Image
When I first went to college, I went into physics, and my goal was to help perfect nuclear fusion so I could… — David Grinspoon College 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 Earth Copy Share Image
It's OK to pursue speculative ideas because we don't want to be too cozy and safe and assume that we know everything… — David Grinspoon Cozy 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 Awareness Copy Share Image
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 Copy Share Image
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 Astrobiology Copy Share Image
The basic ability to not wipe oneself out, to endure, to use your technological interaction with the world in such a way… — David Grinspoon Ability Copy Share Image
