Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: NASA/JPL In 1975, ...

The key to solving the mystery of the Viking results is the discovery of perchlorate on the Martian surface in 2008. When you purchase through links on our site, we may earn an affiliate commission.

Fifty years ago, NASA’s Viking missions to Mars made groundbreaking attempts to detect life on the Red Planet. While the missions initially returned negative results, a new study published in the ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The idea of Mars being host to extraterrestrial life, either currently ...

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Could NASA’s Viking missions have wiped out life on Mars before we even knew it existed? According to an expert at Daily Galaxy, startling theory suggests that our search for Martian life may have ...

DENVER, CO., July 20, 2006 — The National Aeronautics and Space Administration’s (NASA) Viking 1 mission to Mars captured the world’s imagination 30 years ago when the first U.S. spacecraft to ever ...

Earth may be our beloved home planet, but Mars exudes main character energy.

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

Forty years ago, NASA’s Viking mission made history when it became the first mission to successfully land a fully operational spacecraft on Mars. This mission gave us our first real look at the ...