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Space Debris from India's Anti-Satellite Test Is a 'Terrible, Terrible Thing,' NASA Chief Says
April 02, 2019 | ArticleIndia's recent anti-satellite test created 60 pieces of orbital debris big enough to track, 24 of which rise higher than the International Space Station's orbit around Earth.
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Newfound Object Is the Farthest Solar System Body Ever Spotted
December 19, 2018 | ArticleA newly discovered object is the most-distant body ever observed in the solar system — and the first object ever found circling at more than 100 times the distance from Earth to the sun.
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This Fluffy Alien World Farts Helium
December 09, 2018 | ArticleAs a Jupiter-size world swings around its small but active star, bombarded by radiation, the planet leaves behind a tail of escaping helium as wide as itself — and researchers have spotted this tail from the ground.
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SpaceX Launches Dragon Cargo Ship to Space Station, But Misses Rocket Landing
December 05, 2018 | ArticleSpaceX's Dragon spacecraft lifted off into clear blue skies today (Dec. 5), but its first stage spiraled down in a failed landing.
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Stephen Hawking's Children and Colleagues Discuss Physicist's Final Book, Legacy
October 17, 2018 | ArticleIn his final book, released Oct. 16, Stephen Hawking tackles big questions about the universe, delving into physics, cosmology, the existence of God and the future direction of humanity.
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Glowing Blue Clouds Ripple at Edge of Earth's Atmosphere (Video)
September 24, 2018 | ArticleThe clouds' rippling and flow reflect the movement of air in the upper atmosphere resulting from a phenomenon called atmospheric gravity waves.
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Asteroid Hides Behind Sparkling Spiral Galaxy in This Dazzling Telescope View
September 17, 2018 | ArticleThe European Southern Observatory's Very Large Telescope in Chile has a busy observation schedule, but sometimes cloudy or moonlit skies mean a temporary halt to scientific measurements. Then, it grabs images like this.
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