Early Quote by Debra Fischer

As our sensitivity improves, we are finally seeing planets with longer orbital periods, planetary systems that look more like our solar system.

— Debra Fischer

The Earth is a unique system in the universe, the only planet we know of that's hospitable for humankind.

— Sylvia Earle

Of all celestial bodies within reach or view, as far as we can see, out to the edge, the most wonderful and marvellous and…

— Lewis Thomas

So I saw many planets, and they looked just a little bit brighter than they do from Earth.

— Sally Ride

For planetary explorers like us, there is little that can compare to the sighting of activity on another solar system body. This has been…

— Carolyn Porco

That is a big question we all have: are we alone in the universe? And exoplanets confirm the suspicion that planets are not rare.

— Neil deGrasse Tyson

“There is a misconception, geocentric and anthropomorphic, common to the large majority the the earthbound, which causes them to visualize a planetary system stereoscopically.…

— Robert A. Heinlein

Because of Hubble and other telescopes, we've now discovered that there are probably planets around every star, or virtually every star. There are solar…

— John M. Grunsfeld

Before 1995, the only planets we knew about were the planets in our solar system.

— Debra Fischer

Discovering that our solar system has many more planets than we ever expected, and that most of them are ice dwarfs rather than like…

— Alan Stern

The planets are never the same twice, they're always different, so they could compare the markings I had drawn with their current photographs and…

— Clyde Tombaugh

Planets look about the same here as they do to you on the Earth because we really aren't that much closer. Our home, the…

— Sunita Williams