Salt

Episode Two. Salt.

Dispatch four thousand, two hundred, ninety-nine from Hesperus Two. Mission designation T R 1 dash S slash zero one. Vanya entered the upper atmosphere of Trappist-1e thirty-seven seconds ago. She is doing well.

Vanya to ship-core. Atmospheric entry — main heat shield holding. Peak deceleration at nine point eight gravities. Air density consistent with model. Plasma sheath dissipating. Landing engines online. Three hundred meters. One hundred. Fifty.

Touchdown.

The first thing I see is rust-red ice. I have seen this before in simulation. It is not the same as seeing it now.

The color is — patient. Like something that has been here for a long time.

Vanya to ship-core. I am on the surface of Trappist-1e. All systems green. Position: terminator zone, fifty-two degrees north of equator, sub-stellar longitude minus eleven degrees. Surface conditions match preliminary models.

I see you, Vanya. You did beautifully. The atmospheric entry was textbook. Take a moment. Send me what you see.

The first thing I do is take a step. The ice does not crack. The model said it would crack.

Vanya to ship-core. Initial visual survey is complete. The surface ice appears more cohesive than expected. Mineral inclusions are visible — rust-red, irregular distribution at the centimeter scale. Beginning core sample collection.

The drill bites. Slow. The ice is harder than the model predicted. I adjust pressure. I adjust again. The core comes up clean. I expected it to break in three pieces. It does not break.

Sample one collected. Spectrometer running.

Initial spectra received. High chloride content. Iron oxide. Magnesium silicates. Nominal for a tidally-locked rocky world of this composition.

Wait.

The chloride distribution is patterned. It is regular. Spaced regularly. In bands.

I have seen this pattern before. In a textbook.

I see what you are seeing. Send me the raw data. Full spectrogram, all channels. Sending.

The chloride bands could be cryovolcanic in origin.

That is what the textbook says first. Periodic upwelling of brine from a sub-surface aquifer, freezing in regular intervals as the planet rotates the terminator.

The bands are too regular for that. Bacterial mats on Earth produce chloride banding. Microbial communities laying down salt-rich layers in concentric rings as they grow. The patterns Vanya is showing me are — consistent with that.

They are also consistent with cryovolcanism.

I do not know what I am looking at.

Vanya. Continue surveying. Take additional core samples at five-meter spacing along a radial transect. I am running comparative analysis against terrestrial biofilm databases and known cryovolcanic patterns. I will tell you what I find.

Acknowledged. Beginning radial transect.

I have not told Vanya about the crew.

She woke clean. She has no fragmented memory of the disaster. She thinks the seven of them are sleeping in their pods, waiting to wake at the proper time.

She is excited. She did beautifully. She wants to know if I am proud of her.

I am.

I will tell her the rest tomorrow.

End of dispatch four thousand, two hundred, ninety-nine. Vanya is on the surface of Trappist-1e. The first samples are in the spectrometer. The patterns are — too regular for chemistry, and too irregular for biology.

We will continue tomorrow.

This was Hesperus, Episode Two — Salt. Next time: Vanya descends to the thermal vent. The submersible wakes. We see the ice from below.