Mars once was wet and fertile. It's now bone dry. Something bad happened on Mars. I want to know what happened on Mars so that we may prevent it from happening here on Earth. Neil deGrasse Tyson badboneearth Change image and share on social
People generally don't recognize how long it takes to conceive, publish, and write a book. Neil deGrasse Tyson bookconceivegenerally Change image and share on social
Rational thoughts never drive people's creativity the way emotions do. Neil deGrasse Tyson creativitydriveemotion Change image and share on social
If you get asteroids about a kilometer in size, those are large enough and carry enough energy into our system to disrupt transportation, communication, the food chains, and that can be a really bad day on Earth. Neil deGrasse Tyson asteroidbadcarry share on social
You can't come away with this cosmic perspective thinking that you are better than others and want to fight. That's why you'll never have astrophysicists leading nations into war. Neil deGrasse Tyson astrophysicistcosmicfight Change image and share on social
There's a lot to do in space. I want to learn more about the greenhouse effect on Venus, about whether there was life on Mars, about the environment in which Earth and the Sun is immersed, the behavior of the Sun. Neil deGrasse Tyson behavioreartheffect share on social
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. Neil deGrasse Tyson adultcarefull share on social
I want to know what dark matter and dark energy are comprised of. They remain a mystery, a complete mystery. No one is any closer to solving the problem than when these two things were discovered. Neil deGrasse Tyson closecompletecomprise Change image and share on social
Kids are born curious about the world. What adults primarily do in the presence of kids is unwittingly thwart the curiosity of children. Neil deGrasse Tyson adultbearchild Change image and share on social
One of the things that fascinates me most is when people are so charmed by the universe that it becomes part of their artistic output. Neil deGrasse Tyson artisticcharmfascinate Change image and share on social
