“I'm an astrobiologist, and I come from a planetary science background,...” — David Grinspoon Quote

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

“Ever since the environmental movement was sparked by photos of the whole Earth taken by astronauts onboard Apollo Lunar Modules, I've seen planetary exploration as an extension of a reverence and care for Earth.”

“Titan has rivers and lakes of liquid methane and ethane, methane weather systems of clouds and storms that mirror Earth's hydrologic cycle, and seasonal cycles that rival Earth's in complexity.”

“What's fun is that the characters in 'Broad City' are rushing and hustling, and our process reflects that.”

“All political parties, if they are to be successful, have to be broad churches.”

“It's really been a better situation for me being with the Crush than it would if I were with the Broncos because this has given me a lot more broad range.”