Galaxies are astronomical objects composed of billions or even trillions of stars. Our Earth and solar system are just a tiny ...

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

The Bullseye is now confirmed to have nine rings, eight of which are visible to Hubble. Researchers confirmed the existence ...

One photographer put the age of starlight into perspective with stunning projections on some of Earth's oldest rock ...

Abundance of Earth-like Exoplanets The universe has no shortage of similarities to Earth when it comes to celestial ...

According to astronomers, there are approximately 200 billion trillion stars in our observable universe — chances are, ...

Their research reveals which Earthly 'technosignatures' would be easiest to detect from a planet across the galaxy.

If a star orbits a black hole, it will appear from a distance to be orbiting empty space. Gaia projects the star’s orbit on a ...

Check out our preview of Galaxy of Madness #6, where Vigil and her crew continue their cosmic quest to find her missing ...

According to astronomers, there are approximately 200 billion trillion stars in our observable universe — chances are, ...

Dark energy is still a mystery, but powerful new telescopes are set to uncover clues. With NASA and ESA leading the charge, ...

The Godzilla Nebula is a cloud of gas and dust in the constellation Sagittarius that was imaged by NASA's Spitzer Space Telescope. The star cluster Pismis 24 lies within the much larger emission ...