The notebook Alina kept for seventy-eight years.

Transit Day 89. We are past the halfway point. Mars is closer than Earth.

I have been thinking about the word for what this is.

Not the mission. I have excellent words for the mission. Twelve years of education produced excellent words for the mission. I can describe in precise scientific language everything we are going toward — the brine pocket hypothesis, the mycorrhizal adaptation protocols, the subsurface thermal gradient models. I have words for all of it.

I do not have words for him.

He was at the viewport again this morning. I found him there. He was not looking at anything in particular. He was just standing in the specific quality of stillness he has when he is not calculating — which is rare enough that I notice it every time.

He said: the stars do not move. I said: they do, relative to our heading. He said: I know. I mean they do not seem to. I said: that is because we are moving with them. He was quiet for a while. Then he said: yes. That is what it feels like.

I did not know what he meant. I wrote it in my notebook anyway.

I have been writing things I do not fully understand in this notebook since Reykjavik. The notebook is for things that are true before I know why they are true.

Tonight I wrote one word. Then I crossed it out.

I am not ready to know what I am writing.

But I think I am getting close.

— A.R.V.

I told him this morning.

We were outside, above the anomaly. The brine pocket has been shifting northwest for weeks — toward the soil bed, toward my grandmother's cutting, toward the thing that has been growing since Sol Two. I was crouched with the sensor array. He was checking the eastern habitat junction. He came and crouched beside me.

I said: I think I am pregnant.

He was very still.

He said: of course.

Not: are you sure. Not: the mission parameters. Not the seventeen practical concerns I had been organizing in my mind for six weeks since the first signs. He said: of course. He said it the way he says things he is structurally certain of. Without revision.

I did not cry. I am noting this because I expected to cry and I did not. What I felt was something quieter than crying. The specific sensation of something being confirmed that you already knew.

I said: I named her on the transit.

He looked at me.

I said: I did not know I named her. There was a word that kept coming into my mind. Nova. A new brightness. I wrote it on Transit Day 89 and I crossed it out because I did not know what I was writing it for.

He said: Nova.

He said it the way he says things he is structurally certain of.

I said: yes.

The anomaly below us shifted .02 degrees further northwest this afternoon. Toward the soil bed. Toward the cutting. Toward us.

The planet noticed too.

— A.R.V.

03:14.

She arrived at 03:14 Mars Standard Time. 2.8 kilograms. 49 centimetres. She looked at the ceiling of the medical module for a long moment — with the specific quality of attention that I have been watching in her father for three years — and then she looked at me.

I said: Nova.

Carter's heart rate dropped to 38. I know this because SOLEN told me afterward. SOLEN said it had never recorded that number in his file. SOLEN said it created a new category. I asked what SOLEN named the category. SOLEN said: what Carter's heart does when something is more than he expected.

Carter held her for a long time. He did not speak. He does not speak when something is more than words. He presses his hand against things and listens. He held Nova and listened to her breathing and I watched him understand, for the first time in his life, that he had built something that built itself.

At 14 months she said her first word.

SOLEN.

I wrote it in the notebook. Not because I was surprised — I was not surprised, she had been turning toward SOLEN's voice since she was three weeks old. I wrote it because the notebook is for things that are true before you know why they are true, and I knew, when she said that word, that the story of what we are building here was going to be her story now.

Not ours.

Hers.

That is the most important thing I have understood on Mars.

We built the ground.

She will name everything that grows from it.

— A.R.V. · Sol 441 · 04:22

I am ninety-seven years old.

I have been keeping this notebook since I was nine. The first notebook was actual paper, made from recycled fibres, carried out of the old Manila neighbourhood in a waterproof bag by my grandmother. I still have it. Third drawer of my workbench, where it has been for seventy-eight years.

I am going to write this last entry in it. On the last page.

My grandmother said: name things carefully. The name matters.

I have named 247 things on Mars. The most important ones are: firstlight-falling, for the colour of the sunset that has no Earth equivalent. The kingdom Lola, for the first new kingdom of life in four billion years, named for her. Nova, for our daughter, named before I knew I had named her.

And the most important name I ever gave anything, which I did not know was a name when I gave it: I love you. Said on a Tuesday morning in October in Patagonia, to a man who had already known for eight months.

What I got wrong: I thought the most important thing about being here was the science.

The most important thing was the morning Carter said: I can feel it. Through the floor. The anomaly. He had been an engineer his whole life and he had finally stopped asking whether something held and started asking what it was saying.

The most important thing was Nova at fourteen months saying SOLEN before she said any other word.

The most important thing was the tea. Sol Forty-Four. Two cups. He said nothing. He went back to his workstation.

Not the science. Not the building. The tea.

The two cups.

The seventy-eight years of two cups.

I love him.

I close this notebook now.

SOLEN: you have been watching me write this. Keep the record. That is what you are. The witness. The one who watches while we sleep.

Keep it.

It is worth keeping.

All of it.

Begin.

— A.R.V. · Year 70 MSC · Final Entry