Earth Quote by David Grinspoon

It is difficult to understand the universe if you only study one planet

— Miyamoto Musashi

In the mind of the public, the word 'planet' carries a significance lacking in other words used to describe planetary bodies... many members of…

— Alan Stern

There are other planets besides the Earth and Mars. I'd like to remind you that studying Venus is vital to understanding life elsewhere.

— David Grinspoon

To say that what a planet is doesn't matter would be to imply that a planetary scientist couldn't explain to someone what the field…

— Alan Stern

“If we're stuck on one world, we're limited to a single case; we don't know what else is possible. Then—like an art fancier familiar…

— Carl Sagan

I don't think anyone now really understands the planetisation of mankind, really understands the new world order emerging through all this period of strain…

— William Irwin Thompson

We are generalists. You can't draw neat lines around planet-wide problems. Planetology is a cut-and-fit science.

— Frank Herbert

It will be a long time, if ever, before we get to study Earth-like planets orbiting around other stars, so really, the study of…

— David Grinspoon

Understanding different planets in their environments is still really important. So if these planets are dead lifeless worlds, it will still be useful for…

— Sara Seager

It feels great to discover a planet, just like any discovery in science, except that it has more of the feel of exploration -…

— Dimitar Sasselov

I've been studying the planets and learning the personalities of each planet.

— Dr. Dre

“The author explains the evidence for they would help from astronomy. He says that if planets are behaving in a way that cannot be…

— N.T. Wright