That's over 16 lightyears.

So I want to take you on a trip to an alien world.

A light year is the distance light travels in one year. It's 9.5 trillion (9,500,000,000,000) kilometers.

They're on an intercept course.

It was this circle.

It takes a full eight minutes for its radiation to reach us.

I've only been away three years.

Wow! Billions of lightyears away!

And she has this one passage here.

In 2008, the Nobel Prize in Chemistry was awarded for work done on a molecule called green fluorescent protein that was isolated from the bioluminescent chemistry of a jellyfish, and it's been equated to the invention of the microscope, in terms of the impact that it has had on cell biology and genetic engineering.

And the nearest star is 4.2 light years away, which means its light takes 4.2 years to get here.

This world is a distant three hundred million light years away from the world where you live.

There is of course the light year which is the distance that light travels over one year and one light year is approximately ten to eighteen cm.

And just to give you a scale, because you hear a lot about light years and all of that.

We're free.

So, lets enable it in this scene, as you can see, the shadows gets a nice blue touch here.

So that star is also 50 million light years away.

I had retinal detachment five years ago.

Two wives, 20 years later.

0.4 lightyears.

I left Japan for the first time in ten years.

If you were to arrive in Nairobi today and pick up a tourist map,

Hubble Diagram is probably the most traditional of cosmological test.

That's a third of the U.S. population.

Michael Shermer Well, that's nice.

There are a billion stars in the galactic core, which is why it's shining out so brightly.

So, I was in the hospital for a long time.

They call itradiation, decay age, or whatever, yeah? of the separation.

It was something established and definitive.

We were married three years, we got a divorce.

But even if you were able to get that fast, it would still take 80,000 years, 75 or 80,000 years to travel the 4.2 light years to the Alpha Centauri cluster of stars.

We have some cameras on the south edge of the Ilulissat, watching the calving face as it goes through this dramatic retreat.

Mary asked no more questions but waited in the darkness of her corner, keeping her eyes on the window.

And surely, the space around us is ringing after traveling maybe a million light years, or a million years, at the speed of light to get to us.

She was out of Japan last year.

Jeez. Oh, there's a spread, huh?

So a gigaparsec is three billion light years that's the scale.

We're in 1811 and Russia starts relaxing the

I left my post, sir.

No.

Rwanda is a place that haunts me a lot.

A beam of white light is split by a prism into rays of various colors.

Relationships are hard.

Many sightseers visit Kyoto every year.

The sight has been indelibly etched in my mind.