Southern Californians out on Saturday night for Valentine’s Day took a break from staring longingly into each other’s eyes to gaze at something else: a SpaceX rocket blazing across the early evening Southern California sky.

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The atmospheres of exoplanets have been a focal point of the field lately, with the James Webb Space Telescope taking a look at as many as it can manage. But time on the world’s most powerful space telescope is valuable, and getting a complete picture of any such atmosphere is difficult without that significant time […]

Tiny highly uniform magnetic fields are known to pervade the universe, influencing various cosmological processes. To date, however, the physical mechanisms underpinning the generation of these fields remain poorly understood. Recently, researchers at McGill University and ETH Zurich have described a novel mechanism that may lead to the generation of cosmological magnetic fields. This mechanism, […]

The International Space Station returned to full strength with Saturday’s arrival of four new astronauts to replace colleagues who bailed early because of health concerns.

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Going to space is harsh on the human body, and as a new study from our research team finds, the brain shifts upward and backward and deforms inside the skull after spaceflight.

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When she was growing up, Sophie Adenot plastered her childhood bedroom with posters of rockets launching from Cape Canaveral.

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A new crew rocketed toward the International Space Station on Friday to replace the astronauts who returned to Earth early in NASA’s first medical evacuation.

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Hypothetical dark matter stars known as “boson stars” could leave telltale ripples across the cosmos, offering researchers a new way to probe the invisible forces shaping the universe. In 2019, a strange event was observed in the depths of space. Called GW190521, the event sent out gravitational waves—invisible ripples in the universe—that were picked up […]