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 ...

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 ...

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 ...

No place on Earth has the exact conditions we see on Mars. Scientists believe the Red Planet once had rivers with flowing water. Today, though, the planet’s surface is an arid wasteland with an ...

In 1976, NASA's twin Viking landers touched down on Mars in an attempt to answer a weighty question: Is there life on the Red Planet? Gilbert Levin was the principal investigator of the Vikings' ...

"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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In 1976, NASA's twin Viking landers touched down on Mars in an attempt to answer a weighty ...