![Earthlike planet](https://www.astronomy.com/wp-content/uploads/sites/2/2023/02/earthlike_planet_with_2_moo.jpg)
This artist rendition shows earthlike planets.
Francis Reddy
Computer simulations of gravitational interactions between planets show that two Earth-mass planets would be stable if placed at both ends of the HZ’s 0.95 AU to 1.4 AU range, as long as their orbits were almost circular.