Earth and Mars may have formed through very different processes, despite developing as neighbors in the early solar system.

Mars comes closest to Earth roughly every two years. Sometimes it’s closer than other times. Do you remember the historically close approach of Mars in 2003? At that time, Mars was closer than it had ...

Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's orbit and axial tilt. These variations, known as Milankovitch cycles, ...

Earth and Mars emerged from the same swirling disk of gas and dust, separated today by less than 80 million kilometers at their closest approach. Their common birthplace might suggest that the two ...

Four and a half billion years ago, Earth and Mars were born in the rotating cloud of gas and dust that would eventually become our solar system. Yet exactly how the planets formed remains one of the ...

Earth, a vibrant ocean world with breathable air, active tectonics, and a protective magnetic field, uniquely creates the perfect habitable environment for sustaining diverse life. Earth and Mars have ...

Chemical clues and computer simulations suggest the two rocky planets have unique origin stories. By Robin George Andrews Making planets is an extreme enterprise. Although it starts with dust and gas ...

NASA’s Curiosity rover captured this image showing Earth as a tiny dot of light seen from the surface of Mars. Our planet Earth shines more brightly than any star in the Martian night sky. But can ...

The vision of Mars colonization is moving from science fiction into real-world planning, with multiple space agencies preparing for long-term human presence. Modern Mars missions focus on testing ...