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 and ...

which are still exploring Mars, as well as inactive missions, like the Spirit and Opportunity rovers and the Phoenix lander. "It feels a little bittersweet to look at InSight now. It was a ...

Phoenix Mars Mission: Onto the Ice is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet ...

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 ...