In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

New James Webb Space Telescope observations of a star cluster called NGC 346 are shedding light on how, when and where ...

A cosmic object spotted by the James Webb Space Telescope has flummoxed astronomers. Now, a research team has studied ...

"EP240315a was the first time astronomers had detected soft X-rays for such a long duration from such an ... "The detection ...

The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes what we know about the early universe.

The astronomers detected 44 stars in the "Dragon ... allowing us to see what even individual stars look like at this early period." What exactly is gravitational lensing and how did it help ...

A Yale-led team of astronomers has detected an intensely brightening and dimming quasar that may help explain how some objects in the early universe grew at a highly accelerated rate. The ...