NASA captured this stunning image of Messier 75 or M75, also known as NGC 6864, which is a giant globular cluster of stars in the southern constellation Sagittarius.

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

An international team of scientists has produced the clearest three-dimensional view yet of the Ring Nebula—one of the night ...

The lanes and clouds of dust in the star-forming Orion Nebula (M42) reveal a dark dimension to this familiar object.