Astrobiologists,
Surveyed on K2-18b—
Only few believe.
Surveyed on K2-18b—
Only few believe.
Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b probably represented extraterrestrial life, while 15.1% said the same about intriguing mineral patterns in a Martian rock.