You know your skin beautifies your face. But what else does it do?

The heart is so essential, no wonder the essence of anything is "the heart of the matter!"

If you think lungs are just inflatable balloons, today's program will blow you away!

What a fantastic body you have!

What clues point to the Theory of Everything? Does God satisfy that job description?

No one saw the killing. What good is circumstantial evidence?

Does Christianity help or hinder women, minorities, and society in general? You can access all Truth in the Test Tube episodes by clicking here.

When we squeeze ideas that claim to be truth, which ones crack?

How does God avoid confusing your prayer and mine?

Accepting what "everybody knows" can blind us to discovering something new.

A workaholic learns to cherish his wife and children.

Hazards and humor of flying to the moon.

The God that we detect in nature, also detects us. And he holds us responsible for the fact that we have discovered him.

Dr. & Mrs. Quicke summarize the previous 50 episodes. Next time will be their finale, but Truth in the Test Tube will continue.

How much faith do you need to be an atheist?

Patients teach their doctor a valuable lesson.

When new medical treatments become available, how can we make sure they are not used in unethical or harmful ways?

Print out the instructions to make one cell of your body, and you need a printout the height of the Washington Monument!

How do we know the Earth orbits around the sun? Can we really prove it?

Some couples would die if they didn't have each other. Others simply live much better because they're couples.

If Einstein and Beethoven describe a sunset differently, who is right?

Your computer works better when it's defragmented. What about your mind?

How can you tell what science really says? And what a biased person is trying to make it say?

Has the universe always existed? Or did it have a beginning?

Why does anything exist? And why does the universe fit mathematical formulae?

Who started the "war" between science and Christianity? And why?

Did Columbus' critics really believe the earth was flat?

Your ears do a lot more than just hear!

Darwin thought the cells in our body were simple blobs of jelly. How little he knew!

Why did Darwin shudder when he thought about the eye?

Does an atheist need faith?

For the fittest to "survive," first they must "arrive." How did that happen?

Are we great-great-great-grandchildren of Martians? Why did a NASA spokesman suggest that possibility?

Why did one of the greatest scientific geniuses of all time, write so much about God?

Can an intelligent person believe in miracles? A Nobel scientist and others share their thoughts.

Is it unusual for a scientist to think God exists?

How did life begin? And does life have any purpose?

Your nose does a lot more than merely smell!

Notify the patent office: Bats invented radar and sonar long before humans thought of those technologies.

If you rely only on your senses, you're missing 99.99999999999999 per cent of reality!

A dead ear does some awesome things. What else happens when it becomes alive?

Do you know how hard your blood works to keep you alive? Express your gratitude!

Just because a climate doesn’t kill life, does that mean it's capable of creating life?

Which truths are trivial? And which truths can transform our entire understanding of reality?

How smart are nature's laws? And how did they get so brilliant?

What scientific discoveries made a life-long atheist change his mind?

Your brain can do more than you think.

What privilege is reserved for a being with a brain?

Your 3-pound brain has a ton of intelligence!

Should a professor speak his mind in class? What limits should he have?

Is that bite you just took, nutritious or poisonous? Your body decides and processes it accordingly.

How did God "connect" with humans, to guide them what to write in the Bible?

What makes you so smart? Just some dumb chemistry?

Living your life "for best results."

A Nobel scientist's evaluation of evolution.

Can science prove that you love the person you're kissing?

Is Noah's ark a fable, or fact?

Is there a "mega-mind" who might be God?

Does your conscience ever bother you? Where did it come from?

Does evolution make atheism credible? Ask Darwin's close friend.

Darwin's partner thought evolution wasn't as smart as Darwin thought.

Was Darwin an atheist? Why is there a variety of life on Earth with very many different species?

Have some people made evolution a god? Is evolution a credible substitute for God?

What's more complex than a rocket traveling to the moon? Could it be something in your own house?

Astronaut Charlie Duke helped to rescue Apollo 13 crew, then walked on the moon in Apollo 16.

What is the one weakness of the Resurrection?

What evidence can a detective find, that Jesus came back to life?

What facts about the death and the alleged return to life of Jesus, can a homicide detective verify?