The subatomic particles are incredibly numerous. About 1,000 neutrinos from stars other than the sun pass through a thumbnail ...

The Milky Way, our home galaxy containing 100-400 billion stars, was bright and vibrantly visible from Florida earlier in 2025. Earth sits along one of the galaxy’s spiral arms, about halfway from the ...

When the billions of stars comprising the Milky Way, our home galaxy, appear especially vibrant as the band arcs across the night sky, it’s a photo op. Milky Way season, when the galaxy's bright ...

They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...

August has been a month jam-packed with cosmic phenomena visible from Earth – from nebulas to meteor showers to planetary conjunctions. But the month isn't over yet. And now, add to the mix one of the ...

From a window on the International Space Station, astronauts have captured a rare view of a nearby galaxy caught in the act ...

What's the size of the Milky Way galaxy? Learn how, depending on your definition, the size can change.

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

Time is running out to see the iconic band of stars that comprise the center of the Milky Way. Our galaxy is positively teeming with billions of billions of stars that routinely become bright and ...