NASA's Viking missions in the 1970s were groundbreaking, marking the first time humanity sent spacecraft to Mars with the goal of searching for life. Viking 1, launched in 1975, landed on the Martian ...

The idea of Mars being host to extraterrestrial life, either currently or long ago in the past, has beguiled scientists for centuries. The discovery of frozen water on the Red Planet gave scientists ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: NASA/JPL In 1975, NASA's Viking 1 spacecraft entered orbit around Mars, carrying a ...

NASA's Viking landers were the first spacecraft to successfully touch down on the surface of Mars. NASA/JPL-Caltech via AP Finding life beyond the Earth would be a major scientific discovery with ...

"We’re ultimately looking to discover life, and to do so, we have to think outside the box." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In ...