Document from YouTube
Summary pending
Train for the launch, not the float. Pack light: every gram costs fuel.
Browser extension
The Kepler extension lives where you browse. Save any page with what’s inside it, comment on the exact spot, and keep it all in spaces you share and your AI can use.

Making life multiplanetary
On-orbitView Earth from 300km up
MoonMarsEarth orbitSpace station
Today
Human Spaceflight 3
Launch day from the viewing stand 2
Before your first spaceflight 3
Yesterday
Orbit or station, first time? 4
T Flight chronograph | Tycho Instruments 1
Previous 7 days
M Ten days on a station 2
Packing for zero gravity 1
Kármán Spaceport 1
One click saves the page to a space with what’s inside it. Kepler summarises it and keeps your note beside it, not just a bare URL.
Pictured: Saving spacex.com/humanspaceflight from the browser: Save in Kepler’s dock on the page saves it to Space trip, and Kepler keeps its summary. SpaceX’s page for crewed flights: Earth orbit, a space station, the Moon and Mars, on Dragon and Starship.


Saved to Space trip
Switch to comment mode and pin a thought to a paragraph, an image or a price. It stays anchored there, for you and everyone in the space.
Pictured: A comment pinned to a paragraph of Human Spaceflight: “Sixteen sunrises a day.”
Human Spaceflight
Add a commentSixteen sunrises a day.
Comment
RogerJust now
Sixteen sunrises a day.
Reply...

Reply in the thread, mention the people in your space, or mention Kepler to answer from what you’ve all saved.
Pictured: A thread: Mia: “Do we need astronaut training?” Roger: “@Kepler what did we save about training?” Kepler answers: “The Reddit thread you saved says about two weeks of training, and Mia’s note says the centrifuge day is the hard one.”
1 comment2 comments3 comments
Mia1h
Do we need astronaut training?
RogerJust now
@Kepler what did we save about training?
KeplerJust now
The Reddit thread you saved says about two weeks of training, and Mia’s note says the centrifuge day is the hard one.
Summarise a video or a long page without leaving it. Kepler reads the transcript or the text and keeps the key points with your save.
Pictured: Before your first spaceflight, a video on YouTube: pointing at it brings up Kepler’s Clip and Summarize pill. Summarize sends its transcript to be summarised, and Kepler’s side panel keeps the summary with the save in Space trip: “Train for the launch, not the float. Pack light: every gram costs fuel.”
youtube.com/watch?v=q7Fs3oLm2Tk
ClipSummarize Before your first spaceflight
Before your first spaceflight
Summarization submitted
Document from YouTube
Summary pending
Train for the launch, not the float. Pack light: every gram costs fuel.
Ask Kepler in the side panel. Answers come from the saves, notes and comments in your space.
Pictured: Asked in Space trip: “Which trip fits our plans?” Kepler searches the space, finds two saves and answers from them.
Which trip fits our plans?
Searching Space tripSearched Space trip · 2 saves
Human Spaceflight
MTen days on a station
The SpaceX flight to orbit. You loved the sixteen sunrises a day, and Mia ruled out the station stay.
Ask anything about your space - @ to attach context
🚀Space tripAuto
The extension is where you do the work: re-reading sources, layering annotations, building threads, and pulling it all into context for AI.
Research.
Save while you browse, comment across sources, then ask AI to reason over the whole set.
Learning.
Save tutorials, docs and threads as you learn, with a note on what to try, then ask what they said.
Teams.
Comment threads and shared spaces keep your team’s knowledge in one place instead of scattered across tabs.
Available across every major browser, with Safari on the way.
Save pages, videos and posts from your phone with the Kepler app, on iPhone, iPad and Android.
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