Cicada Sighting! Bug-Eyed Critters Emerging in Northern Virginia

The drought shows signs of lifting in the East -- but the forecast shows more trouble ahead as the drought is expected to intensify in the West and Central Plains this summer, according to NOAA.

Canadian Space Agency Commander Chris Hadfield discussed his four months on the International Space Station during his first press conference since returning to Earth. He also spoke of the peril of re-adapting to gravity. He's even had to change the way he speaks. "I hadn't realized I'd learned to talk with a weightless tongue."

Scientists have found water trapped in lunar rocks. But where did it come from? And how did it get there? A new study last week says it may have come from Earth more than 4 billion years ago.

Commander Chris Hadfield is a great many things: photographer, educator, social media maven -- did I mention astronaut? Add troubadour to the laundry list. That his music video -- a cover of David Bowie's "Space Oddity" -- has already scored 6.6 million hits is a testament to his success as a popularizer of science and space.

In other news Friday, the National Oceanic and Atmospheric Administration reported that carbon dioxide in the Earth's atmosphere has reached a level not seen in millions of years. Also, the new skyscraper at Ground Zero in lower Manhattan now stands at its full height. The new structure will be the tallest in the U.S.

After seven weeks of testimony, a verdict may be reached today on the trial of former Guatemalan leader Efraín Ríos Montt, who is charged with genocide and crimes against humanity committed during his 1982-1983 rule. Revisit the 1983 debate over the U.S. role in Guatemala from the MacNeil/Lehrer Report.

In Guatemala, investigators using forensic science have compelling evidence that thousands of innocent indigenous Ixil Mayans were the target of extermination in the 1980s. Science correspondent Miles O'Brien reports on how murder, politics and science intersect in the genocide trial of former leader Efrain Rios Montt.

Tonight, Miles O'Brien reports from Guatemala on forensic science used to document charges of a genocide against thousands of indigenous Mayans in the 80s. From Boing Boing's Xeni Jardin, who co-produced the piece, here's a look at their reporting.

Sarah Brightman's latest album, "Dreamchaser," is inspired by her life-long fascination with space, and in two years, her childhood dream is set to become reality when she boards a rocket and travels to the International Space Station.

San Francisco's Exploratorium, one of the nation's most successful science and technology centers, has just opened its brand new location. Spencer Michels reports on how the center's hands-on teaching approach peaks the imaginations of children and adults alike.