A fantastic new discovery has given astronomy an unexpected window into the formation of life-precursor molecules in an environment significantly different from our galaxy, the Milky Way. Scientists ...

For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

A mysterious flash of X-ray emission from outside the Milky Way has left astronomers puzzled.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...

The Milky Way is our home galaxy with a disc of stars that spans more than 100,000 light-years. While the Milky Way is generally always visible from Earth, certain times of year are better for ...

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 ...