At least that's what the most current map shows. Astronomers have mapped the most extensive atlas of our Milky Way galaxy yet, including the positions of each and every one of those stars. The ...

Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. You’ve probably heard of space telescopes like Hubble and the James Webb. They’re famous for giving us breathtaking ...

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

The Milky Way galaxy, comprised of billions of stars, will be visible in the night sky until the end of May, particularly between the last quarter moon (May 20) and the new moon (May 30). Light ...

By tracking these stars back to where they came from, scientists can map the gravitational field of the Milky Way. This helps ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

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

A new study shows how Milky Way chemical tracks emerge from shifting star formation and gas supply, reshaping ideas about the ...