"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 ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Pasadena, California CNN — Just steps ...

On Episode 169 of This Week In Space, Rod Pyle and Tariq Malik are joined by Rob Manning, JPL's Chief Engineer Emeritus, to look back at the Mariner 4 Mars mission 60 years later. Six decades ago this ...

Sixty years ago today, NASA’s Mariner 4 spacecraft took the first up-close images of Mars, changing humanity's understanding of the Red Planet. The spacecraft was designed and built by the Jet ...

Pasadena, California (CNN) — Just steps away from High Bay 1, where many of NASA’s pioneering robotic missions have been assembled, is the first image of Mars ever seen on television, broadcast in ...