NASA's Phoenix spacecraft has spotted snow falling from Martian clouds, and detected evidence of past water at its landing site in the Martian arctic plains.
By PBS NewsHour
Bottled water is a hot commodity -- Americans drank almost 9 billion gallons of it last year. But some Maine residents think less of it should come from their state. They are challenging Poland Spring over rights to the state's…
By PBS NewsHour
Flood fears eased in Iowa City Monday, as a string of towns in the state's south and east along the Mississippi River prepared for new problems caused by a recent bout of torrential rains and bad weather.
Recent droughts and temperature spikes have sparked fires in California, Utah and other western states. An expert discusses the dangerous weather conditions.
Fighting continued in Lebanon Monday between the Lebanese army and Palestinian militants. A reporter describes the scene and reasons behind the clashes.
In the fourth installment in a series of conversations about the impact of globalization, NewsHour economics correspondent Paul Solman interviews Vandana Shiva, an activist at the forefront of the fight against globalization for nearly three decades.
China has achieved rapid economic growth over the past decade, but the rapid success has come at the expense of the environment. Independent Television News reports on pollution in China and the price of development.
Spinach has returned to store shelves after September's deadly E. coli outbreak. NewsHour correspondent Spencer Michels reports from California on what caused the problem and what growers are doing to prevent another one.
NASA scientists announced Tuesday that they believe the Mars rover Opportunity has found what used to be a briny pool of standing water at least 2 inches deep.
Support Provided By: Learn more
Educate your inbox
Subscribe to Here’s the Deal, our politics newsletter for analysis you won’t find anywhere else.