Welcome aboard

As a child, I was fascinated by space exploration and the discovery of new territories. When I founded my agency OHLEE-1, I wanted to pay tribute to the Voyager-1 probe. A vanguard of human exploration, it carries the Golden Record The Sounds of Earth, a testament to the cultural diversity of our planet intended for possible extraterrestrial civilisations.

Tracker-1 follows in that tradition: bringing these pioneering expeditions to the general public and highlighting the scientists who pushed the limits for the benefit of humanity. The project stands up for science and research, and raises awareness of the great challenges we face.

This site is yours. Feel free to send me suggestions or report a scientific error. I hope you enjoy exploring the universe. Look up at the sky.

Primary sources. Every article starts from an official publication, press release or dataset: NASA, ESA, CNES, JAXA, JPL, research institutes, peer-reviewed journals. References are cited in the text, with their date.

Checked figures. Every figure is tied to its source. When a value is an estimate, we say so.

Original figures. Charts and diagrams are built from published data. No AI-generated illustration is presented as evidence or as a document.

Human review. Assistance tools speed up research and drafting, but every article is reviewed, corrected and approved by a human before publication. A reported error is corrected and dated.

Tracker-1 is published by OHLEE-1, a SASU based in Vincennes, France. The publication director is Damien Fischetti. Full details are available in the legal notice.

The site is funded by Google AdSense display advertising on editorial pages. Ads are labelled “Advertisement” and consent is managed through Google's certified platform. Tracking and observation tools remain ad-free.

An error, an inaccuracy, a missing source? Report it through the assistant's contact form. Factual corrections are made and dated.

For any question, suggestion or report, use the “Contact” button in the Tracker-1 assistant. Messages are read by the editorial team.