The brilliant blue-white star lighting up the red nebula Sh2-46 hints at a dynamic and possibly fleeting encounter that could reshape the nebula's appearance over time.
Scientists have finally gathered direct proof of how the universe forges its heaviest elements, a process that has remained a mystery for over half a century.
Data from Europe's Gaia spacecraft have revealed that a cluster of 1,000 stars is breaking up much faster than is normal, stumping astronomers.
Neutron stars are some of the weirdest cosmic objects, and the greatest mysteries lie deep in their hearts.
Astronomers have observed a twinkling star and discovered an abundance of mysterious plasma structures in our cosmic neighborhood.
Using the Hubble and Gaia space telescopes, astronomers have discovered that a powerfully magnetic neutron star in the Milky Way wasn't born in a supernova.
In 23 billion years, these two white dwarf stars will collide. Then, they'll explore. Here's why scientists say this discovery is such a big deal.
Scientists are probing stellar "quakes" to understand what lies beneath the surface of a star's body.
The nova is ignited when a "vampirific" white dwarf steals too much matter from a companion star.
The cosmic pinwheel that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once thought.
