#solar system

You know, there was a time, just before I started to study physical science, when astronomers thought that systems such as we have here in the solar system required a rare triple collision of stars. ↗

— Murray Gell-Mann

#before #collision #here #i #just

It is more likely that more than a century will pass before we know the structure of the chemical atoms as thoroughly as we do our solar system. ↗

— Johannes Stark

#before #century #chemical #know #likely

There's life all over this universe, but the only life in the solar system is on earth, and in the whole universe we are the only men. ↗

— George Wald

#life #men #only #over #solar

Of all the planets apart from Earth in our solar system, Mars is the most hospitable. Yeah. Right. Better keep my visit short. And yet, despite the discomfort, the danger, I love it here. I love coming back for these imaginary vacations. The sights are amazing. ↗

— Greg Bear

#apart #back #better #coming #danger

Man must at all costs overcome the Earth's gravity and have, in reserve, the space at least of the Solar System. ↗

— Konstantin Tsiolkovsky

#earth #gravity #least #man #must