Michael A. McCoy / Bloomberg / Getty Images file

1 day ago

Astronauts splash down after cutting space station mission short due to a medical issue

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NASA astronauts depart space station due to a medical issue, beginning their early trip home

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The DNA of an extinct species is found in a mummified wolf pup's stomach

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2025 was the third-hottest year ever recorded on Earth, data shows

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EPA to stop calculating deaths avoided and health care savings from air pollution rules

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How time in space impacts astronauts' brain

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Mysterious interstellar object '3I/ATLAS' makes its closest approach to Earth

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New technology helps paralyzed patients move

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Video shows wild wolf appearing to use a tool to steal fish

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A geomagnetic storm sparked a rare northern lights viewing for many across dozens of states. NBC News' Gadi Schwartz investigates the science behind the northern lights.

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Carbon pollution rose last year. Experts blame a cold winter, natural gas prices and data centers.

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Astronauts' brains change shape and position after time in space, study finds

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Same-sex sexual behavior observed in dozens of primate species, suggesting evolutionary origin

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NASA announces timing for astronauts' early departure from ISS due to medical issue

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Another California resident dies of death cap mushroom poisoning

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California is completely free of drought for the first time in 25 years

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NASA to bring astronauts home from space station early due to a medical issue

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Trump's exit from global climate treaty leaves U.S. without a voice in negotiations

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NASA considers rare early ISS crew return due to astronaut's medical issue

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A rare whale is having an encouraging season for births. Scientists warn it might still go extinct.

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A NASA spacecraft orbiting Mars may be dead

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