Last time a stray planetoid the size of Mars smashed into Earth, it scattered our planet's young crust into space, where gravity glued those particles into what we now call the Moon.

Charleston, SC, astronomy professor answers questions from high school students about wormholes, black holes, colonizing Mars, outer space odors and more.

The curious minds at What If predict what would happen if Earth collided with Mars, revealing catastrophic destruction, ...

Astrobiologist Alyssa Carson has spoken of her dream of going to Mars but also outlined the many issues that come with such an epic mission. If science fiction is anything to go by, humanity should ...

Compared with Earth, Mars is tiny, yet it seems to have an outsized effect on our planet’s climate cycles. Similar small planets could affect the climates of worlds beyond our solar system, which we ...

Scientists have long suspected that Mars was once teeming with water, a tropical oasis with vast river systems that may have been able to support life billions of years ago. To get a better picture of ...

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 million miles away, but scientists and movie directors have been finding its ...

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational pull serves as a stabilizing force for our home’s orbit, tilt and position ...

Esteban Ocon has admitted to making “mistakes” when he raced Force India Formula 1 team-mate Sergio Perez, with their rivalry generating several collisions. Going into his first full season in Formula ...

Mars is about half Earth’s size and roughly a tenth its mass — not really the sort of planet you’d expect to leave fingerprints on Earth’s climate history. Yet a new set of simulations by an ...

NASA lost contact with its MAVEN Mars orbiter in early December and has been unable to reconnect with the vehicle. NASA plans to resume efforts to hail the spacecraft now that the solar conjunction ...