Astronaut Scott Kelly spent 340 days -- the longest an American has ever been in space -- on the International Space Station before descending into Kazakhstan by capsule Tuesday evening. Kelly’s extraterrestrial sojourn was part of a study on the…
By Michael Wilkinson
For 29 years, fifth-grade teacher Michael Wilkinson has used space exploration to teach his students about math, science and the power of imagination. He shares his memories of the Challenger space shuttle disaster and why he never gave up on…
By Kenzi Abou-Sabe
On Saturday, Philae, the European Space Agency's comet lander, communicated with its team on Earth for the first time since going into hibernation in November of last year.
By Jasmine Wright, Margaret Myers
The world’s first space telescope celebrates a quarter century this week. NASA’s Hubble Space Telescope launched into orbit aboard the space shuttle Discovery 25 years ago Friday, on April 24, 1990.
By Joshua Barajas
Michael McDonnell has climbed Mount Kilimanjaro. He has a physics degree. He’s worked in hazardous environments. His hope is that these qualifications will convince a selection committee that he’s the perfect candidate for the first human voyage to Mars. So…
By Rebecca Jacobson, Inside Energy
Three billion miles from Earth, the New Horizons space probe sent back its first images of Pluto and its largest moon Charon. Moving at 31,000 miles per hour, New Horizons is set to snap more photos in the coming months,…
By Joshua Barajas
Missing since 2003, British scientists said Friday new high-resolution images revealed that their Mars probe, Beagle 2, had landed safely on the surface of the Red Planet, but failed to fully deploy.
By Jenny Marder and Rebecca Jacobson, Inside Energy
Watch the Orion spacecraft launch live here on the PBS NewsHour.
By PBS NewsHour
After a 10-year journey, the space probe Rosetta is orbiting a comet. The spacecraft is slated to follow the comet for more than a year on its way toward the sun. Hari Sreenivasan talks to Mark McCaughrean, senior scientific advisor…
By Larisa Epatko
After a 10-year, 4-billion-mile journey, the European Space Agency’s Rosetta space probe reached its final destination on Wednesday: comet 67P/Churyumov-Gerasimenko.
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