Science Sep 26 NASA crashes spacecraft into asteroid in attempt to knock it off course By Miles O'Brien, William Brangham, Courtney Norris
Jun 04 Watch Venus Transit: Explaining a Rare Phenomenon Venus Transit: Explaining a Rare Phenomenon…
Science Feb 20 Watch 50 Years Later, Astronaut John Glenn Recounts His Historic Mission in Space 50 Years Later, Astronaut John Glenn Recounts His Historic Mission in Space…
Science Jul 28 Watch Asteroid Is a Dance Partner for Planet Earth A team of Canadian scientists have discovered a "Trojan" asteroid that is caught in a synchronized orbit with the Earth. Jeffrey Brown discusses what this discovery means with the California Institute of Technology's Mike Brown.
Science Nov 24 Watch Space Shuttle Program Winds Down as Era of Privatized Spacecraft Dawns As NASA's space shuttle program comes to an end after decades of service, private companies are looking to fill the void. Judy Woodruff looks at the future of space exploration with science correspondent Miles O'Brien.
Jul 25 Scientists Discover What Makes the Northern Lights Dance By PBS News Hour Scientists and stargazers alike have long been fascinated by the auroras, also known as the northern and southern lights -- the bands of light that stretch and sometimes dance across the night sky near the earth's poles. Continue reading
Feb 20 Watch U.S. Plan to Shoot Down Satellite Delayed by Weather The U.S. military's plan to shoot down a defunct spy satellite rather than let it fall out of the sky was delayed by rough seas and and strong winds in the Pacific Ocean. Experts debate the effort and how it… Continue watching
Aug 24 Watch Scientists Reclassify Pluto as ‘Dwarf Planet’ Top international astronomers voted Thursday to strip Pluto's planetary status that it has held since its discovery in 1930. The celestial object is now redefined as a "dwarf planet," leaving just eight major planets in the solar system. Continue watching