Quotes from Neil deGrasse Tyson

Collectively, these findings tell us it's conceivable that life began on Mars and later seeded life on Earth, a process known as panspermia.

On Venus you could cook a 16-inch pepperoni pizza in seven seconds, just by holding it out to the air. (Yes, I did the math.)

Dark energy is a mysterious pressure in the vacuum of space that acts in the opposite direction of gravity, forcing the universe to expand faster than it otherwise would.

Let's get China to leak a memo that says they want to build military bases on Mars. We'd be on Mars in twelve months.

And behold the greatest mystery of them all: an unopened can of diet Pepsi floats in water while an unopened can of regular Pepsi sinks.

Equipped with his five senses, man explores the universe around him and calls the adventure science. —EDWIN P. HUBBLE (1889–1953), The Nature of Science

As the area of our knowledge grows, so too does the perimeter of our ignorance.

Science literacy is less about what you know and more about how your brain is wired for asking questions.

If you want to assert a truth, first make sure it's not just an opinion that you desperately want to be true.

In some ways, we are traveling in time now. We just happened to be prisoners of the present in the eternal transition from the past to the future.

the only people who should have their head examined are those who never ask questions.

A bullet fired level from a gun will hit ground at same time as a bullet dropped from the same height. Do the Physics.

When Newton breached this philosophical barrier by rendering all motion comprehensible and predictable, some theologians criticized him for leaving nothing for the Creator to do.

When you are 31 years, 7 months, 9 hours, 4 minutes, and 20 seconds old, you've lived your billionth second.

Dark matter is a mysterious substance that has gravity but does not interact with light in any known way.

I look forward to the day when the solar system becomes our collective backyard—explored not only with robots, but with the mind, body, and soul of our species.

Mount Everest is about as tall as a mountain on Earth can grow before the lower rock layers succumb to their own plasticity under the mountain's weight.

The options available to a creative person are ever limited by the choices offered by a philosopher.

I learned in biology class that more bacteria live and work in one centimeter of my colon, than the number of people who have ever existed in the world. That kind of information makes you think twice about who–or what–is actually in charge.

Everyone should have their mind blown once a day.

Objective truths of science are not founded in belief systems. They are not established by the authority of leaders or the power of persuasion. Nor are they learned from repetition or gleaned from magical thinking. To deny objective truths is to be scientifically illiterate, not to be ideologically principled.

The cosmic perspective not only embraces our genetic kinship with all life on Earth but also values our chemical kinship with any yet-to-be discovered life in the universe, as well as our atomic kinship with the universe itself.

if we don't act , we're just standing still. and the act of standing still is the same as moving backwards when everyone else is in motion all around us, around the world

To declare that Earth must be the only planet in the universe with life would be inexcusably big-headed of us.