2025: The Year We Got Closer to Extraterrestrial Life

2025 emerged as a landmark year in the search for extraterrestrial life, with new discoveries and scientific missions bringing humanity closer to answering the age-old question: is there life beyond Earth?
NASA has created the Confidence of Life Detection (CoLD) scale with seven levels to evaluate findings:
- Detection of a possible signal
- Exclusion of contamination
- Confirmation that it could be biological
- Exclusion of non-biological explanation
- Independent evidence
- Exclusion of alternative hypotheses
- Independent confirmation
To date, only one discovery has reached this scale, and it concerns Mars.