"That Mars is habitable by beings of some sort or other is as certain as it is uncertain what these beings may be," wrote Percival Lowell in the early 20th century. While other astronomers had their ...

Humans have long imagined life on Mars, though our understanding of the planet has changed a lot. Some of the US's earliest plans assumed humans could reach the Red Planet by the 1980s. Over the ...

As much as we know today about the planets of the solar system, it’s almost incomprehensible that a mere 50 years ago we knew almost nothing about them. Observations of even Mars and Venus, Earth’s ...

NASA says they've discovered the clearest evidence of potential life on Mars to date, but as history shows, finding actual proof of life remains a difficult task.

Among the many discoveries by NASA’s Mars Reconnaissance Orbiter since the mission was launched on Aug. 12, 2005, are seasonal flows on some steep slopes. These flows have a set of characteristics ...

Dr. Jim Zimbelman, geologist in the Center for Earth and Planetary Studies at the National Air and Space Museum, discusses Mariner 6 and 7 and the images they captured of Mars in 1969. This informal ...

Discusses the various schools of thought concerning the possibility of life on Mars, and how the flight of Mariner 9 around Mars affected these theories. Includes ...

Red Planet Day is observed annually on November 28 to celebrate the exploration and study of Mars, our neighbouring planet often referred to as the "Red Planet" due to its reddish appearance caused by ...

A look back at the Jet Propulsion Laboratory's first roles in exploring the Red Planet. The Changing Face of Mars reveals, through archival footage and interviews with key scientists and engineers, ...