Glowing cloud of gas with an unknown light source spotted
Astronomers have found an enormous glowing nebula with no apparent light emitting source. Nebulas are huge clouds of gas and dust existing between galaxies formed after the explosion of stars. The new-found nebula named 'MAMMOTH-1', believed to be 10 billion light-years away, is the brightest and among the largest of such rare galactic objects in the universe, astronomers said.