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China aims to breed zebrafish aboard Tiangong space station (video)
By Andrew Jones published
Zebrafish aboard China's Tiangong space station are doing well in orbit, according to an update on the experiments.
On this day in space! Oct. 4, 1957: Sputnik 1 becomes 1st human-made satellite
By Hanneke Weitering last updated
On Oct. 4, 1957, the Soviet Union launched Sputnik 1, the satellite that started the Space Race.
How to watch SpaceX's Falcon Heavy rocket launch NASA's Europa Clipper probe on Oct. 10
By Mike Wall published
A SpaceX Falcon Heavy rocket will launch NASA's highly anticipated Europa Clipper astrobiology mission on Oct. 10, and you can watch the action live.
Dangerous satellite air pollution exists in a legal loophole
By Tereza Pultarova published
Air pollution from re-entering satellites is a potential environmental disaster that evades Earth-based laws, experts say.
ULA's new Vulcan Centaur rocket launches on 2nd test flight (video)
By Mike Wall published
United Launch Alliance's new Vulcan Centaur rocket just launched on its second-ever mission, a key test flight that keeps it on track for certification by the U.S. Space Force.
James Webb Space Telescope finds supernova 'Hope' that could finally resolve major astronomy debate
By Robert Lea published
The James Webb Space Telescope has observed a distant cosmic explosion that erupted in the early universe called "supernova Hope" that could help resolve lingering "Hubble trouble."
How to watch ULA's 2nd-ever Vulcan Centaur rocket launch on Oct. 4
By Samantha Mathewson published
United Launch Alliance is set to launch the second test flight of its Vulcan Centaur rocket on Friday morning (Oct. 4), and you can watch the action live online.
Curiosity Mars rover's wheels are more battered than ever — but they still work
By Stefanie Waldek published
The latest photo of Curiosity's wheels shows new — but not debilitating — damage.
Mass extinctions on Earth can help us find alien life in the cosmos. Here's how
By Conor Feehly last updated
The history of life on Earth offers clues to aid the search for complex life elsewhere in the cosmos.
First moonwalker Neil Armstrong's speech notes posted online by Purdue
By Robert Z. Pearlman published
Neil Armstrong is perhaps best known for saying 12 words on July 20, 1969: "That's one small step for a man, one giant leap for mankind." But there's more to his record, as his alma mater can attest.
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