except 11), Mars (Viking 1 and 2 and Phoenix), Venus (Pioneer Venus) and Halley’s comet (Giotto). UTD scientists and engineers have deployed instruments on the International Space Station and ...

There, in a futuristic, glitzy setting, multiple robotic arms twist and turn to ... ships with planetariums, including Viking Orion, Viking Jupiter, Viking Mars and Viking Neptune.

The most significant change since those 1970's experiments were conducted was the discovery of high levels of perchlorate on Mars. Perchlorate, plus abiotic oxidants, explains the Viking results ...

Back in 1976, the dual NASA Viking landers came to full stop on the Red Planet. Their life detection experimental findings still reverberate within the scientific community – fueling the on-going ...

This mosaic is made up of more than 100 images captured by NASA’s Viking 1 orbiter, which operated around Mars from 1976 to 1980. The scar across the center of the planet is the vast Valles ...

Mars has shone red in the night sky for as long as humans have gazed up at the cosmos, fascinating people from the ancient Romans to the present day. "The fundamental question of why Mars is red ...

The color red and the planet Mars go together like Earth and its oceans or Saturn and its rings. However, our understanding of how the Red Planet got its signature hue might be wrong. A new ...

A study using radar data from China's now-dead Zhurong rover finds strong evidence that Mars had a stable ocean ... It's the same rubbly plain where the U.S. Viking 2 lander touched down in ...

Mars is easily identifiable in the night sky by its prominent red hue. Thanks to the fleet of spacecraft that have studied the planet over the last decades, we know that this red color is due to ...

Frigid water helped paint Mars red and may have shaped a vast coastline, two new studies into the planet’s history reveal. Scientists have detected a possible ancient beach in Mars’ northern ...

With its iconic rusty hue, Mars has long been called the red planet. Now, scientists may have discovered the potential source of that distinctive coloring, overturning a popular theory in the process.