Year in review: Best evidence yet for water on Mars
Red Planet’s slopes ooze brine, data from Mars Reconnaissance Orbiter showed
SALT STORY Seasonal water flows might have created dark streaks on Mars’ slopes, as seen in this computer-generated view of Hale Crater.
JPL-Caltech/NASA, Univ. of Arizona
There’s water on Mars. Yes, again.
In the most highly publicized Mars discovery of the year, NASA announced that its Mars Reconnaissance Orbiter spacecraft had spotted hydrated salt minerals on the Red Planet (SN: 10/31/15, p.