Scientists simulated a situation that may offer an improved explanation for how the Red Planet ended up with small Phobos and ...

Earth, sun, moon: three objects in space whose interactions have a pretty big impact on our lives. Earth orbits the sun once ...

A NASA study using a series of supercomputer simulations reveals a potential new solution to a longstanding Martian mystery: ...

Phobos and Deimos could have formed from asteroid debris, a new study suggests. An upcoming sample return mission will help test the idea.

Billions of years ago, the fourth planet from the sun could have been mistaken for Earth ... up from Mars after a huge impact long ago. Deimos, the smaller of the two moons, orbits Mars every ...

This apparent change in direction is caused by the motion and positions of Earth and Mars as both planets orbit around the sun. Mars orbits the sun on a much more distant path than Earth.

SpaceX will create Marslink as a first step towards greater than petabit per second communication between Earth and Mars. Marslink aims to establish a high-speed data relay system—capable of ...

geologists use to better understand the environmental conditions in which truly ancient earth life may have first formed. For decades, we have wondered whether Mars, Venus and the icy moons of ...

Martian day: As Mars orbits the Sun, it completes one rotation every 24.6 hours, which is very similar to one day on Earth (23.9 hours). Martian days are called sols – short for "solar day." ...