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Surrounded by candy canes and a makeshift snowman made out of stowage bags, the astronauts on the International Space Station gathered together to wish a Merry Christmas to everyone back on Earth.

For better or for worse, a small part of the Apollo 11 spacecraft will now be Jon Mesick's to have and to hold for all the days of his life. The tape is the centerpiece of Mesick's wedding band.

NASA administrators play a vital role in deciding what NASA does and how it does it, and they also help build political support for space exploration.

A pair of massive thunderstorms have been spotted swirling in Jupiter's "South Equatorial Belt" and are likely unleashing massive bolts of green lightning. Some experts think the pale clouds could end up altering the rusty band's color — and potentially even making it "disappear."

Mars is on the cusp of becoming bigger and brighter than at any point since 2022 as it comes into alignment with Earth and the sun.

Dark matter, antimatter, W bosons and neutron lifetimes all feature in our top 10 stories.