#Stars Quotes #Echoes Quotes #Perfect Quotes
Carl Sagan
Astronomer
Cecilia Payne-Gaposchkin
Astronomer
Dava Sobel
Science writer
Freeman Dyson
Physicist
Jill Tarter
Astronomer
Michio Kaku
Physicist
Paul Davies
Physicist
Seth Shostak
Astronomer
Stephen Hawking
Physicist