A close-up of the Dragon's Egg Nebula, with two mismatched stars inside. ESO/VPHAS+ team. Acknowledgement: CASU Some 3,800 light-years away from Earth, in the Southern Hemisphere constellation Norma, ...

As we continue to break new ground in the field of cosmology, the importance of carefully categorizing the objects we see comes into focus. Part of this stems from the fact that, increasingly, we find ...

The Crab Nebula is one of the most studied objects in the night sky. This version of the Crab Nebula combines data from three different telescopes.

This image compares two drastically different portraits of the Stingray nebula captured by NASA’s Hubble Space Telescope 20 years apart. The image on the left, taken with the Wide Field and Planetary ...

In 1054 A.D., a star's death in the constellation Taurus was observed on Earth. Now, almost a thousand years later, a superdense neutron star left behind by the explosion is spewing out a blizzard of ...