Apocalypse When? Hubble Casts Doubt on Certainty of Galactic Collision

As far back as 1912, astronomers realized that the Andromeda galaxy — then thought to be only a nebula — was headed our way. A century later, astronomers using NASA’s Hubble Space Telescope were able to measure the sideways motion of Andromeda and found it was so negligible that an eventual head-on collision with the […]

June 02, 2025
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NPR News: Glowing patches of bacteria could solve a centuries-old maritime mystery

Glowing patches of bacteria could solve a centuries-old maritime mystery
For hundreds of years sailors have told stories about miles of glowing ocean during moonless nights. This phenomenon is known as "milky seas," but the only scientific sample was collected in 1985. So atmospheric scientist Justin Hudson, a PhD candidate at University of Colorado, used accounts spanning 400 years to create a database of milky seas. By also using satellite images to visually confirm the tales, Justin hopes his research brings us one step closer to unraveling this maritime mystery. Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave. Got a question about a scientific mystery? Let us know at shortwave@npr.org.

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NPR News: Some of the U.S. could see the northern lights due to a geomagnetic storm

Some of the U.S. could see the northern lights due to a geomagnetic storm
The National Oceanic and Atmospheric Administration's Space Weather Prediction Center says a severe geomagnetic storm is possible Sunday night.

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NPR News: Hurricane season has started. Here's what to know

Hurricane season has started. Here's what to know
The 2025 hurricane season officially began on Sunday. Forecasters are predicting an active season.

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NPR News: Hurricane season has started. Here's what to know

Hurricane season has started. Here's what to know
The 2025 hurricane season officially began on Sunday. Forecasters are predicting an active season.

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NPR News: Endurance swimmer circles Martha's Vineyard to raise awareness of shark loss

Endurance swimmer circles Martha's Vineyard to raise awareness of shark loss
Endurance swimmer Lewis Pugh is completed the first solo swim around the island of Martha's Vineyard, to raise awareness for shark populations.

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NPR News: How does the brain turn an experience into an emotion?

How does the brain turn an experience into an emotion?
A study offers a glimpse of how the brain turns experience into emotion. In mice and humans, puffs of air to the eye caused persistent changes in brain activity, suggesting an emotional response.

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