Water

Captain Kirk just dropped the mic. And then it floated away because space has zero gravity.
Bernhard Edmaier was a geologist long before he was a photographer, and it shows.
Neil deGrasse Tyson explains why Mars is a big deal.
Forty-six million children have better educational opportunities, more than 110 million women and children have better access to health care, and clean drinking water is more available to over 27 million people.
One of the essential ingredients for life is discovered on the red planet.
Don't worry: It's more than you could physically drink.
It's not too late to make our oceans bluer. One organization has an ambitious plan to make that happen.