Stars once thought to provide evidence of hypernovae may instead owe their unusual chemistry to ordinary supernovae that ...

It’s one giant misstep for mankind. The Blue Origin rocket that exploded into a stunning fireball during a test debacle on the Florida coast could delay the Artemis space program’s bold mission to ...

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A dramatic photo shows the extremely unlikely moment when a blazing fireball meteor photobombed a contender for the "Great Comet of 2026" as it shone in the night sky over a 500-year-old European ...

For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined kerosene was favored for its easy handling and non-toxicity, hydrazine for its ...

2026 is a big year for SpaceX's Starship, the biggest and most ambitious rocket ever built. The third version of the still-in-development launch vehicle will debut soon (maybe), which will be the ...

Four stars with unusual chemical ingredients may not need exceptionally powerful explosions to explain their origins. New ...

Stunning new footage shows a bright-green "fireball" meteor exploding in the skies over an erupting volcano in the Philippines. Initial reports suggested that the falling space rock may have struck ...