Space NPR coverage of space exploration, space shuttle missions, news from NASA, private space exploration, satellite technology, and new discoveries in astronomy and astrophysics.

(Left) Bob Ebeling in his home in Brigham City, Utah. (Right) The Challenger lifts off on Jan. 28, 1986, from a launchpad at Kennedy Space Center, 73 seconds before an explosion killed its crew of seven. (Left) Howard Berkes/NPR; (Right) Bob Pearson/AFP/Getty Images hide caption

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(Left) Howard Berkes/NPR; (Right) Bob Pearson/AFP/Getty Images

30 Years After Explosion, Challenger Engineer Still Blames Himself

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A view from Earth of a slender crescent moon in close proximity to the two brightest planets in the sky, Venus and Jupiter. Justin Lane/epa/Corbis hide caption

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Justin Lane/epa/Corbis

Track Jupiter's Path Like An Ancient Babylonian

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A NASA team has attached nearly all of the hexagonal segments that will together make the primary mirror for the James Webb Space Telescope (pictured are practice segments). Chris Gunn/NASA hide caption

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Chris Gunn/NASA

Massive Space Telescope Is Finally Coming Together

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Signs Of Hidden Planet Found In Our Solar System

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For The Next Month, 5 Planets Will Align In Early Morning Sky

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The imagined view from Planet Nine back toward the sun. Astronomers think the huge, distant planet is likely gaseous, similar to Uranus and Neptune. Caltech/R. Hurt (IPAC) hide caption

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Caltech/R. Hurt (IPAC)

Scientists Find Hints Of A Giant, Hidden Planet In Our Solar System

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Belgian Astronomers Honor David Bowie With A Constellation

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An artist's impression of the superluminous supernova as it would appear from a planet in the same galaxy, about 10,000 light-years away. The exploding star is 570 billion times brighter than our sun. Jin Ma/Beijing Planetarium/Science hide caption

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Jin Ma/Beijing Planetarium/Science

Record-Busting Star Explosion Baffles Sky Watchers

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The inset image shows X-ray arcs that astronomers say are signs of galactic burping in the Messier 51 galaxy system, captured by NASA's Chandra X-ray Observatory. X ray: NASA/CXC/Univ of Texas/E.Schlegel et al; Optical: NASA/STScI hide caption

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X ray: NASA/CXC/Univ of Texas/E.Schlegel et al; Optical: NASA/STScI

This platinum-engraved sapphire disk, part of a set illustrating Earth's biodiversity, will be housed in the Earth Chamber of the MoonArk. It's designed by Mark Baskinger with Matt Zywica, Maggie Banks, Christie Chong, Bettina Chou, Adella Guo, Natalie Harmon, Deborah Lee, Deniz Sokullu and Carolyn Zhou. Courtesy of The Moon Arts Project hide caption

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Courtesy of The Moon Arts Project

An Artistic Time Capsule Prepares To Hitch A Ride To The Moon

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Astrophysicist Richard Gaitskell, from Brown University, leads a team hunting particles of dark matter about a mile beneath Earth's surface. No luck so far, but Gaitskell is still hopeful. Chet Brokaw/AP hide caption

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Chet Brokaw/AP

A Physicist Dreams Of Catching Dark Matter In The Act

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