Science & Nature

PBS NewsHour Covers NASA’s Discovery of Water on Mars

Photo by NASA/JPL-Caltech/University of Arizona

Over the weekend, NASA teased a big announcement across their social media accounts, and when it arrived this morning it was a doozy! Scientists have not only found evidence of the existence of water on the red planet, they’ve found actual flowing water.

As PBS NewHour science reporter Nsikan Akpan writes this morning, “Mars has seasonal rivers of flowing water. Note the verb ‘has’ rather than ‘had,’ as in liquid water is a current feature on present-day Mars. In other words, this is not from the distant past — the water is flowing now. What appeared to be a dry void of red-orange rock is wetter than previously thought.”

Follow full coverage of this exciting discovery and what it means – and to see more of the stunning photos like the one above of some of the sites that researchers found the flowing water – visit PBS NewsHour’s Rundown online.

 

Uncovering the Past: Wisconsin's Sustainable Agriculture

Harriet Behar of Organic Valley CROPPOver the past couple months we’ve been digging through our video library and making several classic programs available on-demand. We’ve uncovered a lot of gems, including the 1995 documentary Covering New Ground: Wisconsin’s Sustainable Agriculture. The picture may not be high-definition, but the subject matter certainly holds up in today’s consumer-conscience society.

In Covering New Ground, WPT talks with farmers around the state who choose sustainable methods to produce the food we eat. The film covers rotational grazing, urban farming, targeted herbicide use and more sustainable farming methods.

Chances are good you’ve heard of some of the farmers featured in the 20-year-old film. Organic Valley, Harmony Valley and Milwaukee’s Will Allen are some of the more well known farmers on the program.

Take a moment to look back on this classic documentary and to marvel at some sustainable business models that seem progressive even by today’s standards.