Tiny crystals in Earth’s crust may have recorded meteorite and comet impacts as our planet traveled through the spiral arms ...

An illustration that shows the Milky Way's spiral arms. If you were to spring from Earth so high you could glance down at the entire Milky Way, our home galaxy would look like a spinning pinwheel. In ...

Every one of us is unique and important, but at the same time, we’re a microscopic part of something that’s beyond ...

This image captures a richly detailed section of the Milky Way, showcasing a tapestry of stars and glowing nebulas. Against a black cosmic backdrop, countless white stars sparkle like scattered ...

So how many stars are there? Given all of the above, astronomers estimate that the Milky Way contains around 100 billion stars, and there are at least 100 billion galaxies in the observable universe.

St. Louis, Mo. — For decades, astronomers have been blind to what our galaxy, the Milky Way, really looks like. After all, we sit in the midst of it and can’t step outside for a bird’s eye view. Now, ...

NASA's Pleiades supercomputer has provided fresh insights into the Oort cloud – a vast, theoretical spherical shell of icy objects that surrounds our solar system. For a long time, the Oort cloud's ...

On Sunday November 23, 1924, 100 years ago this month, readers perusing page six of the New York Times would have found an intriguing article, amid several large adverts for fur coats. The headline ...

The newly discovered feature offers insight into the large-scale structure of our galaxy, which is difficult to study from Earth’s position inside it. Scientists have spotted a previously unrecognized ...

You still may be able to spot the Milky Way's galactic center in the night sky across the US, but time is running out.

Catch a glimpse of the Andromeda Galaxy as it hangs high in the October night sky. Late October presents a perfect ...

Every one of us is unique and important, but at the same time, we’re a microscopic part of something that’s beyond ...