Hey, Dad.

Hey, Murph.

You son of a bitch.

I never made one of these when you were still responding…

…because I was so mad at you for leaving.

And then when you went quiet, it…

…seemed like I should live with that decision. And I have.

But todays my birthday.

And its a special one, because you told me….

You once told me that when you came back, we might be the same age.

And today Im the age you were when you left.

So it would be a real good time for you to come back.

I didnt mean to intrude. Its just that Ive never seen you in here before.

Ive never been in here before.

I talk to Amelia all the time.

It helps.

• Im glad youve started. - I havent. I–

I just had something I needed to get out.

• I know theyre still out there. - I know.

There are so many reasons their communications might not be getting through.

I know, professor.

Im not sure what Im more afraid of.

Them never coming back or…

…coming back to find weve failed.

Then lets succeed.

So…

…back to the fourth iteration. Lets run it through some new fields.

With respect, professor, weve tried that hundreds of times.

It only has to work once, Murph.

Every rivet that they strike could have been a bullet.

Weve done well for the world here…

…whether or not we crack the equation before I kick the bucket.

• Dont be morbid, professor. - Im not afraid of death.

Im an old physicist.

Im afraid of time.

Time.

Youre afraid of time.

Weve been trying to solve the equation…

…without changing the underlying assumption about time.

• And? - And that means…

…each iteration is an attempt to prove its own proof.

Its recursive. Its nonsensical.

Are you calling my lifes work…

…nonsense, Murph?

No, Im saying that youve been trying to…

…finish it with one arm– No, with both arms. –tied behind your back.

And I dont understand why.

Im an old man, Murph.

Can we take this point up at another time?

I want to talk to my daughter.

Stepping out into the universe…

…we must confront the reality of interstellar travel.

We must reach far beyond our own lifespans.

We must think not as individuals but as a species.

Do not go gentle into that good night

TARS kept the Endurance right where we needed her.

But the trip took years longer than we anticipated.

We no longer have the fuel to visit both prospects, so…

…we have to choose.

But how?

Theyre both promising.

Edmunds data is better, but Dr. Mann is the one still transmitting, so….

Weve no reason to suspect Edmundss data would have soured.

His world has key elements to sustain human life.

• As does Dr. Manns. - Cooper, this is my field.

And…

…I really believe Edmunds is the better prospect.

• Why? - Gargantua, thats why.

Look at Millers planet. Hydrocarbons, organics, yes…

…but no life. Sterile. Well find the same thing on Manns.

Because of the black hole?

Murphys Law. Whatever can happen will happen.

Accident is the first building block of evolution.

But when youre orbiting a black hole not enough can happen.

It sucks in asteroids and comets, other events which would otherwise reach you.

We need to go further afield.

You once said that Dr. Mann…

…was the best of us.

Hes remarkable. Were only here because of him.

And yet– Yet here he is.

Hes on the ground, and hes sending a very unambiguous message, telling us…

…to come to his planet.

Granted, but Edmunds data is more promising.

We should vote.

Well, if we vote, theres something you should know.

Brand?

He has a right to know.

That has nothing to do with it.

• What does? - Shes in love with Wolf Edmunds.

• Is that true? - Yes.

And that makes me want to follow my heart.

But maybe weve spent too long trying to figure all this out with theory.

Youre a scientist, Brand.

So listen to me…

…when I say that love isnt something we invented. Its…

…observable, powerful.

It has to mean something.

Love has meaning, yes. Social utility, social bonding, child rearing….

We love people who have died. Wheres the social utility in that?

None.

Maybe it means something more, something we cant…

…yet understand.

Maybe its some evidence, some…

…artifact of a higher dimension that we cant consciously perceive.

Im drawn across the universe to someone I havent seen in a decade…

…who I know is probably dead.

Love is the one thing were capable of perceiving…

…that transcends dimensions of time and space.

Maybe we should trust that, even if we cant understand it yet.

All right, Cooper…

…yes…

…the tiniest possibility of seeing Wolf again excites me.

That doesnt mean Im wrong.

Honestly, Amelia…

…it might.

TARS, chart a course for Dr. Manns.

Well lose about a third again.

But next year….

Next year Im gonna work Nelsons farm and well make it up.

What happened to Nelson?

Murph, would you like some more soufflé?

Oh, no. Im full, thanks. It was delicious.

Coop, finish your fritter, please.

Will you spend the night? Your room is exactly as you left it. Its ready.

I need to get back.

My sewing machine is in there, but theres plenty–

I need to….

Too many memories.

We might have something for that. Hey, Coop.

The dust.

Lois, I have a friend who…

…could look at his lungs.