Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

Mars may have hosted life billions of years ago, a possibility that has long intrigued scientists. Now, new evidence suggests ...

NASA's Viking missions to Mars may have inadvertently eliminated Martian life. The missions used water in experiments to ...

A German astrobiologist suggests that humans might have inadvertently wiped out Martian life nearly 50 years ago, during NASA ...

In all our explorations of Mars to date, no evidence has been found that meets the rigorous standards to claim that we have ...

The 1976 Viking landers were the first U.S. missions to land on Mars, conducting the only experiments dedicated to detecting ...

Mars, the astrological planet of action and desire, significantly influences our drive, passions, and conflicts. Its ...

Firming up plans to go to Mars would be fine, so long as it is not done at the expense of returning to the moon.

TL;DR: NASA's Viking 1 spacecraft, which landed on Mars in 1975, aimed to test for life using water-based methods.

This storage vessel later detaches from the spacecraft for the return journey back to Earth, the researchers wrote in the ...

Data from the Mars Express orbiter has been used to create a visualization of "a vast system of deep and steep valleys that ...