[astro-ph.EP] Thousands of exoplanets have been discovered in recent decades, yet Earth remains the only known world with life.
![Atmospheric and water loss of an Earth-like planet for three stellar systems: (e,f) M-dwarf (TRAPPIST-1) central habitable zone. The mass losses shown in a,b,c and d are after 6 Gyr of system integration. -- Full chart below [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/09/Simulated-Effects.png?resize=1200%2C718&ssl=1)
[astro-ph.EP] Thousands of exoplanets have been discovered in recent decades, yet Earth remains the only known world with life.