Stargazers rejoice! Dec. 4 marks the start of the annual Geminid meteor shower, as Earth passes through the trail of debris shed by the strange blue asteroid 3200 Phaethon, triggering
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Technicians with NASA’s Exploration Ground Systems team use a crane to lift and secure NASA’s Orion spacecraft on top of the SLS (Space Launch System) rocket in High Bay 3
In this episode of Space Minds, former NASA commercial space division chief Phil McAlister sits down with host David Ariosto for a wide-ranging conversation about the future of
In a hangar outside Zurich, a veteran of low Earth orbit lay under a kind of medical scanner no spacecraft was ever designed for. The patient was the European Retrievable
Scientists have inched a step closer to solving an enduring mystery in physics — why the universe contains any matter at all — thanks to a newly combined analysis from
WASHINGTON — Roscosmos has replaced a cosmonaut assigned to the next Crew Dragon mission to the International Space Station for reasons neither it nor NASA will disclose. Roscosmos announced Dec.
Sgr A* marks the supermassive black hole at the center of our Milky Way galaxy. The green outlines are locations of star clusters. S2 is one such star cluster. Meanwhile,
China’s lunar ambitions grab attention, but a quieter milestone that the country achieved earlier this year could have longer-term implications for how nations operate in orbit. In mid-2025, China pulled
View at EarthSky Community Photos. | Steven Bellavia captured Mercury’s sodium tail on the morning of December 3, 2025, from Surry, Virginia. Steven wrote: “A 24-million-km-long plume of gas is
Get ready stargazers, the final full moon of 2025 rises tonight! Here’s what to expect when the “Cold Supermoon” looms large over the eastern horizon at sunset on Dec. 4.
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