Scientists solve 16-year-old Blue Ring Nebula mystery
   Date :20-Nov-2020

Nebula mystery_1 &nb
AFTER studying the mysterious Blue Ring Nebula with multiple Earth- and space-based telescopes for 16 years, scientists may have finally discovered what led to its formation.
The nebula -- a cloud of gas in space -- is likely composed of debris from two stars that collided and merged into a single star, said a study published in the journal Nature. The object was first spotted in 2004 when scientists with NASA’s space-based Galaxy Evolution Explorer (GALEX) found that it was an object unlike any they had seen before in our Milky Way galaxy.