Are the Earth-sized planets of the TOI-700 system truly habitable?

Star system: TOI 700 | Distance from the Sun: 102 light years

A new study has investigated the long-term stability and habitability of the TOI-700 system, a rare planetary family containing two Earth-sized worlds located within their star's habitable zone. Using advanced computer simulations, researchers analyzed how the gravity of these tightly packed planets affects their orbits and rotation over billions of years. 

The findings show that while planetary interactions are stable enough to allow for surface oceans, planet TOI-700e sits right on the edge of the habitable boundary. This suggests that while both planets could theoretically support life, the specific conditions on TOI-700e depend heavily on whether it has become tidally locked—a state where one side of the planet permanently faces its sun.

Scientific study

Dynamical Interactions and Habitability in the TOI-700 Multi-Planet System (external link)