Leading Edge

  • September 13, 2017  

    Some 800 million miles away, NASA’s Cassini spacecraft has orbited Saturn and captured images of its rings and icy moons. After nearly 5 billion miles traveled and 20 years of sending revealing data from the gas giant, Cassini is winding down its way toward a suicide plunge into the planet. Science correspondent Miles O’Brien reports on how NASA is choreographing the spacecraft’s final dive. Continue reading

  • August 30, 2017  

    Nature is taking a devastating toll in both the U.S. mainland and in countries like India, Bangladesh and Nepal, where monsoon rains are causing floods and hundreds of casualties. Directly attributing these individual weather events to global warming is a tricky undertaking for scientists. Science correspondent Miles O’Brien reports on what data suggests about the connection.
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