The star, just four light-years away, is known as a red dwarf ... the planet’s air. Not having an atmosphere, which traps important gases like oxygen and water vapor, may render a planet uninhabitable ...

the planet’s rusty red surface tells a story of destruction. Billions of years ago, the fourth planet from the sun could have been mistaken for Earth’s smaller twin, with liquid water on its ...

The Curiosity rover detected the largest organic molecules to date on Mars, which may be fragments of fatty acids, or some of ...

while it takes around 8 minutes to reach our planet. Past missions from Earth to the Red Planet have taken anywhere from 128 to 333 days, depending on how far apart the planets were in their ...

We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation ...

Their goal is to study the planet's volcanic and hydrological history ... assimilation — happen in active volcanic systems on Earth," Tice said in a statement. "It suggests that this part ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed on the Red Planet ... remotely from Earth, have slowly navigated ...

The planet's once-strong magnetic field appears to have been limited to its southern hemisphere, the apparent result of a fully liquid inner core that differs from that of Earth ...

A team of scientists just discovered the longest organic molecules yet seen on Mars, the fourth planet from the Sun and and a tantalizing venue for humankind’s search for life beyond Earth.

The stunning lake is the only place on Earth with geology and mineralogy comparable to those of the ancient impact structure on the Red Planet. This striking similarity meant scientists flocked to ...