Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to ...

In her study, Simpson proposed five different potential planet masses ranging from 1% of the Earth's mass to 10 Earth masses. With each mass, she modeled 2 million years of orbit to find what kind ...

They developed a 3D model that simulates how the solar system's orbital architecture may have evolved differently with the formation of a planet that is at least twice the size of Earth's mass—a ...