Begin Quote by Seth Shostak

We're just learning that a lot of planets are small planets, and we didn't know that before, fact is, in planetary science, objects such…

— Alan Stern

There are innumerable worlds of different sizes. In some there is neither sun not moon, in others they are larger than in ours and…

— Democritus

Earlier generations of stars in the galaxy could well have had planets. But really, there was only hydrogen and helium to work with, so…

— Jill Tarter

There are lots of really interesting little planets out there in the Kuiper Belt, but Pluto's the only one that's got all the cool…

— Alan Stern

We all come from our own little planets. That's why we'reall different. That's what makes life interesting.

— Anonymous

There may be hundreds of small seed planets - or planetesimals - which grow in the disk of matter around a star.

— Debra Fischer

We all come from our own little planets. That's why we're all different. That's what makes life interesting.

— Robert E. Sherwood

There are several new species that are discovered each year on our planet alone, science suggests that there could be many more worlds like…

— Shweta Basu Prasad

Of course there are worlds. Millions of them! Every star you see has worlds, and most of those you don't see.

— Isaac Asimov

I think there must be some other life forms, even if they're microscopic.

— Liam Neeson

When I was a little kid, we only knew about our nine planets. Since then, we've downgraded Pluto but have discovered that other solar…

— Buzz Aldrin

The fact that this chain of life existed [at volcanic vents on the seafloor] in the black cold of the deep sea and was…

— Robert Ballard