I believe that worrying about the problems plaguing our planet without taking steps to confront them is absolutely irrelevant. The only thing that changes this world is taking action.
Everything we do, every thought we've ever had, is produced by the human brain. But exactly how it operates remains one of the biggest unsolved mysteries, and it seems the more we probe its secrets, the more surprises we find.
Let me tell you something about full moons: kids don't care about full moons. They'll play in a full moon, no worries at all. They only get scared of magic or werewolves from stupid adults and their stupid adult stories.
Our galaxy, the Milky Way, is one of 50 or 100 billion other galaxies in the universe. And with every step, every window that modern astrophysics has opened to our mind, the person who wants to feel like they're the center of everything ends up shrin...
I always try to get people a different outlook. When you do that, people take ownership of the information. They don't ever have to reference me because, I'd like to believe as an educator, I'm empowering them to have those thoughts themselves.
Big ideas, big ambitious projects need to be embedded within culture at a level deeper than the political winds. It needs to be deeper than the economic fluctuations that could turn people against an expensive project because they're on an unemployme...
When a president promises something beyond his years in office, he is fundamentally unaccountable. It is not his budget that must finish the job. Another president inherits the problem, and it becomes a ball too easily dropped, a plan too easily aban...
You will never find scientists leading armies into battle. You just won't. Especially not astrophysicists - we see the biggest picture there is. We understand how small we are in the cosmos. We understand how fragile and temporary our existence is he...
I'm often asked - and occasionally in an accusatory way - 'Are you atheist?' And it's like, 'You know, the only 'ist' I am is a scientist, all right?' I don't associate with movements. I'm not an 'ism.' I just - I think for myself.
When you innovate, you create new industries that then boost your economy. And when you create new industries and that becomes part of your culture, your jobs can't go overseas because no one else has figured out how to do it yet.
When Kennedy said, 'Let's go to the moon,' we didn't yet have a vehicle that wouldn't kill you on launch. He said we'll land a man on the moon in eight years and bring him back. That was an audacious goal to put forth in front of the American people.
Venus has a runaway greenhouse effect. I kind of want to know what happened there because we're twirling knobs here on Earth without knowing the consequences of it. Mars once had running water. It's bone dry today. Something bad happened there as wel...
There are thousands of asteroids whose orbit in the Solar System crosses that of Earth. And we have a little acronym for them - NEOs: near Earth objects. And our biggest goal is to try to catalogue them, so we know in advance if one is going to put u...
We didn't build the interstate system to connect New York to Los Angeles because the West Coast was a priority. No, we webbed the highways so people can go to multiple places and invent ways of doing things not thought of by the persons building the ...
I'd ask [God] why he keeps trying to kill us all with disease, pestilence, and natural disasters. I'd ask why 99% of all species there ever were are now extinct -- if God works in mysterious ways, that way is mysteriously genocidal.
I would request that my body in death be buried not cremated, so that the energy content contained within it gets returned to the earth, so that flora and fauna can dine upon it, just as I have dined upon flora and fauna during my lifetime
For me, an area of moral clarity is: you're in front of someone who's suffering and you have the tools at your disposal to alleviate that suffering or even eradicate it, and you act.
I think we will see better vaccines within the next 15 years, but I'm not a scientist and am focused on the short-term - what will happen in the interim.
The only way to do the human rights thing is to do the right thing medically.
One of the things we have to acknowledge is that if you look at Haiti, many billions of dollars have gone into development aid there that have not been effective.
I recommend the same therapies for all humans with HIV. There is no reason to believe that physiologic responses to therapy will vary across lines of class, culture, race or nationality.
