The factors that make life possible on Earth compared to other stars are a combination of several factors, including:

1. Distance from the sun: Earth is situated at a distance from the sun that allows for the presence of liquid water, which is essential for life as we know it. This distance also allows for a relatively stable climate, which is necessary for the development and sustainability of life.
2. Atmosphere: The Earth’s atmosphere is made up of a mix of gases that are well-suited to supporting life. Oxygen, for example, is necessary for respiration, while carbon dioxide is essential for photosynthesis.
3. Magnetic field: The Earth’s magnetic field protects us from harmful solar radiation and cosmic rays, which can be damaging to living organisms.
4. Plate tectonics: The movement of the Earth’s tectonic plates helps to recycle nutrients and maintain a stable climate by regulating the release of carbon dioxide from the Earth’s crust.
5. The presence of a large moon: The moon’s gravity helps to stabilize the Earth’s axial tilt, which helps to regulate the planet’s climate and prevents extreme temperature fluctuations.
6. Luck: Finally, it’s worth noting that the presence of life on Earth may be due, at least in part, to luck. There are likely many other planets in the universe that meet the criteria for supporting life, but whether or not life exists on these planets is still an open question.