March 29, 2013 With samples from over 1,800 separate meteorite falls around the world, ASU's Center for Meteorite Studies claims the world's largest university-based meteorite collection. Meenakshi Wadhwa explains how meteorites can teach researchers about the history of the solar system.
<iframe src="http://www.npr.org/player/embed/175741697/175724143" width="100%" height="290" frameborder="0" scrolling="no">
March 29, 2013 From the rocky fragments in Saturn's rings to Earth's own moon, our solar system bears signs of an ancient demolition derby. Planetary scientist Erik Asphaug describes the role of impacts in our planetary neighborhood, and looks ahead to a possible comet collision on Mars.
<iframe src="http://www.npr.org/player/embed/175741693/175722109" width="100%" height="290" frameborder="0" scrolling="no">
U.S. astronaut Chris Cassidy gestures before Thursday's launch of the Soyuz from the Russian-leased Baikonur Cosmodrome in Kazakhstan.
Natalia Kolesnikova/AFP/Getty Images
March 29, 2013 The latest Soyuz reached the International Space Station in just six hours instead of two days. It was the first manned mission to accomplish the feat.
Artist's conception showing the suspected progenitor of a new kind of supernova called Type Iax.
Christine Pulliam/Harvard-Smithsonian Center for Astrophysics
March 27, 2013 The new type of supernova is fainter, less energetic and rarer than the ones already known.
Splashdown of SpaceX Dragon on Tuesday.
March 26, 2013 The second unmanned commercial space mission to the International Space Station returns with more than 1 ton of cargo.
Planck's view of the Cosmic Microwave Background.
European Space Agency
March 21, 2013 European scientists say new data from the Planck probe show that the universe is 13.82 billion years old instead of 13.77 billion, as previously thought.
Actor Bruce Willis on the surface of an asteroid from the movie Armageddon. Lawmakers are questioning the likelihood of the movie's plot becoming reality.
Frank Masi/ASSOCIATED PRESS
March 20, 2013 Scientists told a Senate panel that getting caught off-guard by a space rock hurtling toward Earth would lead to devastating consequences.
Apollo 11 climbs toward orbit after liftoff on July 16, 1969. In 2 1/2 minutes of powered flight, the S-IC booster lifts the vehicle to an altitude of about 39 miles, some 55 miles downrange.
March 20, 2013 Some of the most powerful U.S. rocket engines ever built have been raised from the depths off Florida. The Apollo-era motors are to be restored and put on display. Meanwhile, NASA has pulled unused copies of the same engine out of storage and fired them up as part of its program to build new heavy lift rockets.
Comet PanSTARRS, as viewed by NASA's orbiting STEREO (Solar TErrestrial RElations Observatory).
March 15, 2013 The comet's now putting on a show in the Northern Hemisphere's night sky. Using its orbiting observatories, NASA captured a stereo view from space that offers a unique perspective.
The 10-meter Keck II (right), a twin of the world's largest optical telescope, was used to study the atmosphere of HR 8799c.
March 15, 2013 Scientists say the discovery of more carbon than oxygen and no methane in the atmosphere of a gas giant favors one theory of solar system formation.
March 15, 2013 Microbes may once have happily existed on the surface of Mars, according to chemical analysis of a sedimentary rock in the Red Planet's Gale crater. NASA geologist and exobiologist David Blake discusses evidence for an ancient freshwater lake in the crater, and describes the mineral-chomping microbes that may have thrived there.
<iframe src="http://www.npr.org/player/embed/174409390/174409377" width="100%" height="290" frameborder="0" scrolling="no">
March 13, 2013 NASA's newest rover on Mars has just finished analyzing a sample of powder drilled from inside a rock, and has found evidence that the red planet once had conditions that could have supported microbial life.
<iframe src="http://www.npr.org/player/embed/174174581/174174632" width="100%" height="290" frameborder="0" scrolling="no">
A screenshot shows how a team would track changes to its rocket project on a Sunglass platform.
March 8, 2013 The challenge, launching during the SXSW festival Saturday, asks anyone with an Internet connection to try to create a rocket engine. The 3-D designs can be edited by users around the globe, a model the organizers hope will decrease the cost of space innovation and unleash "untapped potential around the world."
March 6, 2013 What happened to the future? In the '60s and '70s, says astrophysicist Neil Tyson, kids thought about going to space, exploring; tomorrow seemed so, so near. But no longer. Our world these days, is tighter, more awake to limits, and that's not good, says Tyson, not good for kids, and especially not good for the economy. Tyson insists that dreaming makes us richer.
The SpaceX Dragon cargo vehicle is grappled by the International Space Station's robotic arm Sunday morning.
March 3, 2013 Mechanical difficulties after Friday's launch pushed back the capture of the unmanned capsule by a day. The Dragon will stay in place until the end of March, after dropping off 1,200 pounds of supplies, and return with more than twice that amount.
NPR thanks our sponsors
Become an NPR sponsor