May 26 NASA's Mars Spacecraft Lands, Transmits Photos of Arctic Terrain By PBS News Hour After a 10-month, 422-million-mile voyage, NASA's Phoenix Mars lander touched down Sunday and began transmitting pictures from the arctic plains of the Red Planet where scientists hope to find evidence of water and life-sustaining conditions. Continue reading
May 23 NASA's Phoenix Spacecraft Lands on Mars By PBS News Hour A spacecraft designed to search for life on Mars completed its nearly 10-month, 422-million-mile voyage Sunday, touching down the Red Planet and transmitting intriguing images from its northern arctic plains. Continue reading
Apr 01 Scientists Plot Pollutants' Path at the Arctic By PBS News Hour The Arctic is a receptacle of the planet's air pollutants -- from forest fires to human-produced carbon dioxide emissions -- and a coordinated international effort is geared toward learning more about pollutants' effects at the top of the globe. Continue reading
Mar 04 NASA Orbiter Reveals Avalanches on Mars By PBS News Hour A NASA spacecraft orbiting Mars has sent back the first-ever images of avalanches on the red planet, NASA announced Monday. Continue reading
Nov 07 Watch Astronomers Spy New Planet in Distant Solar System Scientists announced Tuesday that they had discovered a new planet orbiting the star 55 Cancri, 41 light years from Earth, making it the most crowded solar system identified outside of our own. Astronomer Geoff Marcy talks about the new planet… Continue watching
Oct 03 Watch Fifty Years Ago, Sputnik Launched Space Age Fifty years ago this week, the Soviet Union launched Sputnik, the first man-made satellite, into space. On the anniversary of the turning point in space exploration, a NASA historian and a science reporter assess the impact and legacy of the… Continue watching
Jun 22 Polar Research on Earth Assists with Mars Study By PBS News Hour As scientists continue to explore the poles as part of the International Polar Year, hoping to better understand the Earth's most extreme environments, some researchers are looking for answers even farther off -- toward the north pole of Mars. Continue reading
Jun 19 Shuttle Undocks from Space Station After Construction, Computer Glitch By PBS News Hour The space shuttle Atlantis moved away from the International Space Station Tuesday after a nearly 10-day stay during which astronauts installed a truss and pair of solar arrays, and experienced a temporary computer meltdown. Continue reading
May 31 Watch NASA Develops Plans for Moon-Mars Mission NASA has unveiled plans for crew and launch vehicles to return humans to the moon as the first steps toward building an outpost there and eventually traveling to Mars. NewsHour correspondent Tom Bearden takes a closer look at NASA's space… Continue watching
May 16 Watch Scientists, Students Study Space Storms in THEMIS Project High school students and teachers in Alaska are helping NASA scientists collect data for a mission that aims to learn more about the space weather that causes the aurora borealis, or northern lights. Continue watching