One in 200 stars has habitable Earth-like planets surrounding it - in the galaxy, half a billion stars have Earth-like planets going around them - that's huge, half a billion. So when we look at the night sky, it makes sense that someone is looking back at us. Michio Kaku Space
It's very dangerous to put astronauts on a moon base where there's radiation, solar flares and micro meteorites. It'd be much better to put robots on the moon and have them mentally connected to astronauts on the Earth. Michio Kaku Space
Do you realize that if you fall into a black hole, you will see the entire future of the Universe unfold in front of you in a matter of moments and you will emerge into another space-time created by the singularity of the black hole you just fell into? Neil deGrasse Tyson Space
If you want a nation to have space exploration ambitions, you've got to send humans. Neil deGrasse Tyson Space
Sooner or later, we will face a catastrophic threat from space. Of all the possible threats, only a gigantic asteroid hit can destroy the entire planet. If we prepare now, we better our odds of survival. The dinosaurs never knew what hit them. Michio Kaku Space
Space exploration is a force of nature unto itself that no other force in society can rival. Neil deGrasse Tyson Space
Science has taught us, against all intuition, that apparently solid things like crystals and rocks are really almost entirely composed of empty space. And the familiar illustration is the nucleus of an atom is a fly in the middle of a sports stadium, and the next atom is in the next sports stadium. Richard Dawkins Space
The urge to miniaturize electronics did not exist before the space program. I mean our grandparents had radios that was furniture in the living room. Nobody at the time was saying, 'Gee, I want to carry that in my pocket.' Which is a non-thought. Neil deGrasse Tyson Space
We humans are an extremely important manifestation of the replication bomb, because it is through us - through our brains, our symbolic culture and our technology - that the explosion may proceed to the next stage and reverberate through deep space. Richard Dawkins Space
What Alexander Graham Bell thought up occupied less space than a flower vase. Now it's so small that I have to search all my pockets to discover I've received a spam text. P. J. O'Rourke Space
If you're going to lead a space frontier, it has to be government; it'll never be private enterprise. Because the space frontier is dangerous, and it's expensive, and it has unquantified risks. And under those conditions, you cannot establish a capital-market evaluation of that enterprise. You can't get investors. Neil deGrasse Tyson Space
I'm perennially intrigued how people who lead largely evidence-based lives can, in a belief-based part of their mind, be certain that an invisible, divine entity created an entire universe just for us, or that the government is stockpiling space aliens in a secret desert location. Neil deGrasse Tyson Space
What's a space elevator? Simply described, it's a thin ribbon, about 3 feet wide and 60 thousand miles long, stretching upwards from the surface of the Earth. The lower end is bolted to a heavy anchor (think of an oil drilling platform), and the top is capped with a counterweight. Seth Shostak Space
If your ego starts out, 'I am important, I am big, I am special,' you're in for some disappointments when you look around at what we've discovered about the universe. No, you're not big. No, you're not. You're small in time and in space. And you have this frail vessel called the human body that's limited on Earth. Neil deGrasse Tyson Space
When a young non-white male is stopped and searched at the whim of a police officer, his idea of personal space, privacy and self esteem are shattered, to say nothing of his Fourth and Fourteenth Amendment protections. The damage goes deep quickly and stays. Stop & frisk, as well as a tactic, is also an incitement. Henry Rollins Space
All architecture has a public nature, I believe, so I would like to make a public space. Tadao Ando Space
Philosophically, the universe has really never made things in ones. The Earth is special and everything else is different? No, we've got seven other planets. The sun? No, the sun is one of those dots in the night sky. The Milky Way? No, it's one of a hundred billion galaxies. And the universe - maybe it's countless other universes. Neil deGrasse Tyson Space