I want and need the artist to take me to new places, and the new place that Van Gogh took me not the sky as it is but the sky as he felt it. And the more of us that feel the universe, the better off we will be in this world.

In any city with lots of skyscrapers, lots of skyline, the moon seems bigger than it is. It's called the moon illusion.

With one linear centimeter of your lower colon there lives and works more bacteria (about 100 billion) that all humans who have ever been born. Yet many people continue to assert that it is we who are in charge of the world

When I reach to the edge of the universe, I do so knowing that along some paths of cosmic discovery, there are times when, at least for now, one must be content to love the questions themselves.

Apart from the obvious advantages of having ice to melt, filter, then drink, you can also break apart the water's hydrogen from its oxygen. Use the hydrogen and some of the oxygen as active ingredients in rocket fuel and keep the rest of the oxygen for breathing. And in your spare time between space missions, you can always go ice skating on the frozen lake created with the extracted water.

Italy valued cathedrals while Spain valued explorers. So worldwide, five times as many people speak Spanish than Italian.

Scientists are human. We have our blind spots and prejudices. Science is a mechanism designed to ferret them out. Problem is we aren't always faithful to the core values of science.