As well as being the namesake of a delicious candy bar, the Milky Way is a huge spiral galaxy stretching somewhere between 100,000 and 180,000 light years in diameter. And nestled around 26,000 light ...

Astronomers have discovered that our solar system traveled through a dense, star-forming region near Orion about 14 million years ago. This cosmic journey may have altered Earth’s environment, ...

When we think about orbits, we usually picture the Earth zooming around the sun. But does the sun just sit there? Or is it on its own journey? I asked my friend Guy Worthey. He’s a space scientist at ...

Spiral Galaxy from Kirkland et al. CREDIT Chris Kirkland and colleagues. A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...